SELECT count(DISTINCT t1.title) FROM papers AS t1 JOIN authorship AS t2 ON t1.paperid  =  t2.paperid JOIN inst AS t3 ON t2.instid  =  t3.instid WHERE t3.name  =  "Tokohu University"
Find the number of papers published by authors from the institution "Tokohu University".
SELECT count ( DISTINCT t1.title ) FROM papers AS t1 JOIN authorship AS t2 ON t1.paperid = t2.paperid JOIN inst AS t3 ON t2.instid = t3.instid WHERE t3.name = `` Tokohu University ''
select count ( distinct t1 . title ) from papers as t1 join authorship as t2 on t1 . paperid = t2 . paperid join inst as t3 on t2 . instid = t3 . instid where t3 . name = value
Find the number of papers published by authors from the institution `` Tokohu University '' .