question: who has the last name Ferreira and scored 20 oals in the league, between 1997-98?
answer: Rivaldo
context: Title: Bobby Prentice
  Passage: Bobby Prentice (born 27 September 1953 in Douglas Water, South Lanarkshire) is a Scottish former professional footballer.  Prentice started his senior career with Celtic, but did not make a league appearance for the club.  He joined Hearts on 18 August 1973.  Bobby made 209 appearances for Hearts, his last on 28 April 1979.  He scored 20 goals for the club and was noted as a fast outside left.  Prentice then played for Toronto Blizzard.
  Title: 1997–98 FC Barcelona season
  Passage: FC Barcelona returned to its previous glorious league ways under the guidance of new coach Louis van Gaal.  The highly rated coach, hired from Ajax Amsterdam, brought lethal striker Sonny Anderson and the attacking midfielder Rivaldo with him.  But surprisedly Barcelona sold Ronaldo to Inter Milan just before season begin and thus handed Sonny Anderson as main striker.  He introduced Barcelona to his marvelous 4-3-3 formation, in which Rivaldo was a perfect centre forward, scoring 20 goals in the league.  Under van Gaal at helm on his first season, Barcelona won their 15th La Liga title, 2nd European Super Cup title as well as 24th Copa del Rey title (thus winning their domestic double) but Barcelona crashed out of the UEFA Champions League, following a lackluster performance in the First Group Phase.  In fact, Barcelona ended up last in the group, and was not even qualifying for the remainder of the UEFA Cup, contributing only single victory, two draws and three defeats and thus preventing Barcelona's first treble glory.
  Title: Jack Miles (rugby union)
  Passage: John Henry Miles known as Jack Miles (born 14 February 1880, died 23 February 1953) was a rugby union wing who played 93 times for Leicester Tigers between 1899 and 1904 scoring 75 tries for 223 points.  Miles made his Leicester debut against Handsworthy on 9 September 1899 scoring a hat trick.  However that was not enough to keep his place in the team and he did not play again until 25 October 1899 against Bedford School where he scored 2 tries.  He did not become a regular in the first team until the 1901/02 season where he scored 20 tries in 26 appearances; continuing that form he scored 14 tries in 17 games the next season to earn his England cap.
  Title: Dave Edgar (footballer)
  Passage: David James Edgar (5 February 1902 – 1976) was a Scottish footballer who played as an outside left.  He scored 20 goals from 121 appearances in the Scottish Football League playing for East Fife, Heart of Midlothian and Airdrieonians, and was a member of the East Fife team that reached the 1927 Scottish Cup Final.  After moving to England, he scored 20 goals from 92 appearances in the Football League playing for Aldershot and Darlington in the 1930s.
  Title: Ferreira Gullar
  Passage: José Ribamar Ferreira (September 10, 1930 – December 4, 2016), known by his pen name Ferreira Gullar, was a Brazilian poet, playwright, essayist, art critic, and television writer.  In 1959, he was instrumental in the formation of the Neo-Concrete Movement.
  Title: Renato Kotnik
  Passage: Renato Kotnik (born 1 March 1970) is a former Slovene football player, who played as a midfielder.  During most of his playing career Kotnik represented Maribor, Korotan and Beltinci in the Slovenian highest division, the Slovenian PrvaLiga, where he has made 172 appearances and scored 20 goals.  He has spent the most time in Maribor where he has made 181 competitive appearances for the club and scored 20 goals in the process.  During the final years of his career, Kotnik played for amateur clubs in the Austrian football system.  In one of those clubs, SV Schwanberg, Kotnik finished his career during the 2006–07 season.
  Title: 1976–77 Tennis Borussia Berlin season
  Passage: The 1976–77 season was the second occasion on which Tennis Borussia Berlin played in the Bundesliga, the highest tier of the German football league system.  After 34 league games, Tennis Borussia ended up in 17th position as they had done two seasons previously.  Second from the bottom of the table, they only finished one place above Rot-Weiss Essen due to a better goal difference.  As in the previous season, the club reached the third round of the DFB-Pokal; this time losing 5–1 away to the season's eventual cup winners 1.  FC Köln.  Swedish striker Benny Wendt scored 20 of the club's 47 league goals.
  Title: 1904 Michigan Wolverines football team
  Passage: The 1904 Michigan Wolverines football team represented the University of Michigan in the 1904 Western Conference football season.  In the team's fourth season under head coach Fielding H. Yost, the Wolverines compiled a perfect 10–0 record and outscored opponents 567–22.  The 1904 team was the fourth of Yost's legendary "Point-a-Minute" teams.  Michigan's games were of varying length from 22½ minutes to 70 minutes.  Over the course of ten games, Michigan played 476 minutes of football and averaged a point scored for every 50.3 seconds played.  The team included future College Football Hall of Fame inductee Willie Heston, who scored 20 touchdowns for 100 points that season; touchdowns were worth five points under 1904 rules.
  Title: Nanduri
  Passage: Those with the last name Nanduri are said to hail from the village of Nanduru which is located near Bapatla and Ponnur (small towns in the Guntur District of Andhra Pradesh).  There is a village called Nanduru in East Godavari District of Andhra Pradesh as well which leads to some ambiguity.  Those with this last name could be Niyogi Brahmins or Sri Vaishnava Brahmins or they could also be from a caste other than the Brahmin caste.  One of the other known caste is Bhatraju.  For the most part, those with this last name are predominantly Brahmins.  Many have migrated from Nanduru and they have settled in various part of Andhra Pradesh.  Some are known to have settled in a village known as Lingala, which in located in the Khammam District of Andhra Pradesh.  Lingala is said to have been ruled by kings with the last name Nanduri hundreds of years ago.
  Title: Rivaldo
  Passage: Rivaldo Vítor Borba Ferreira (born 19 April 1972), known as Rivaldo (] ), is a Brazilian former professional footballer and the current president of Mogi Mirim Esporte Clube in Brazil.  He played mainly as an attacking midfielder but also as a second striker.  Although primarily left footed, he was capable of playing on either flank, and was on occasion deployed as a wide midfielder or as a winger.
citations: 1997–98 FC Barcelona season Rivaldo