CREATE TABLE "appearances_in_tour_de_france_since_1947" (
  "year" real,
  "stage" text,
  "category" text,
  "start" text,
  "finish" text,
  "leader_at_the_summit" text
);

Question: What stage has a start of saint-girons in 1988?
SQL: SELECT "stage" FROM "appearances_in_tour_de_france_since_1947" WHERE "start"='saint-girons' AND "year"=1988;

Question: What category was in 1964?
SQL: SELECT "category" FROM "appearances_in_tour_de_france_since_1947" WHERE "year"=1964;