SELECT t1.country FROM inst AS t1 JOIN authorship AS t2 ON t1.instid  =  t2.instid JOIN papers AS t3 ON t2.paperid  =  t3.paperid GROUP BY t1.country ORDER BY count(*) DESC LIMIT 1
Find the country that the most papers are affiliated with.
[Schema (values) (types)]: | icfp_1 |  Inst : instid (text) , name (number) , country (text) | Authors : authid (text) , lname (number) , fname (text) | Papers : paperid (text) , title (number) | Authorship : authid (text) , instid (number) , paperid (text) , authorder (text);