How many venues are involved in the main tournament which is part of the English Cricket Team's 2017-2018 schedule?
five
Title: English cricket team in Australia in 2017–18
Passage: The England cricket team is scheduled to tour Australia between November 2017 and February 2018 to play five Tests and five One Day Internationals (ODIs).  They will also take part in a three nation Twenty20 International (T20I) tournament, along with New Zealand, who will co-host the tournament along with Australia.  The Test series will form part of the 2017–18 Ashes series.  In May 2017, it was confirmed that the WACA Ground would host the Test and ODI in Perth, as the planned new ground was unable to open in time.
Title: 2017–18 Ashes series
Passage: The 2017–18 Ashes series is a forthcoming series of Test cricket matches to be contested between England and Australia for The Ashes.  The series will be played at five venues across Australia between 23 November 2017 and 8 January 2018.
Title: English cricket team in India in 2005–06
Passage: The English cricket team toured India during February, March and April 2006.  The English cricket team was aspiring to maintain the form that took them to second place in the ICC Test Championship before their disastrous spell against Pakistan, and which helped win the 2005 Ashes series at home to Australia.  This goal was substantially hindered by the usual stomach complaints which nearly always dog the English team in the opening weeks of Indian tours, and a recurrence of an injury to the captain Michael Vaughan; the swing bowler Simon Jones and the absence of Ashley Giles who missed the tour for an operation.  As well as this, stand-in captain Marcus Trescothick flew home for "personal reasons", not wishing to divulge further, leaving Andrew Flintoff, who missed the birth of his son, to take on the title of skipper for the first time having to captain two maiden international cricketers on the English side: Alastair Cook and Monty Panesar as well as Shanthakumaran Sreesanth, Piyush Chawla and Munaf Patel for the home team.
English cricket team in Australia in 2017–18 2017–18 Ashes series