Table: peyresourde_climb
Columns: year
stage
category
start
finish
leader_at_the_summit

Question: What stage has a start of saint-girons in 1988?
SQL: SELECT "stage" FROM peyresourde_climb WHERE "start" = 'saint-girons' AND "year" = 1988

Question: What category was in 1964?
SQL: SELECT "category" FROM peyresourde_climb WHERE "year" = 1964