Table: rugby_squads_2007_13
Columns: player
position
date_of_birth_age
caps
club_province

Question: What position does the player with 13 caps play?
SQL: SELECT "position" FROM rugby_squads_2007_13 WHERE "caps" = 13

Question: How many caps for mike macdonald?
SQL: SELECT SUM("caps") FROM rugby_squads_2007_13 WHERE "player" = 'mike macdonald'