CREATE TABLE "chronological_list_of_grand_slam_singles" (
  "years_led" text,
  "span_of_years_led" real,
  "player" text,
  "titles_won_at_point_of_lead" real,
  "total_career_titles" real,
  "tournament_at_which_lead_began" text
);

Question: How many career titles does roy emerson have?
SQL: SELECT "total_career_titles" FROM "chronological_list_of_grand_slam_singles" WHERE "player"='Roy Emerson';

Question: What were the total career titles of the player who led for 5 years?
SQL: SELECT COUNT("total_career_titles") FROM "chronological_list_of_grand_slam_singles" WHERE "span_of_years_led"=5;

Question: Of the players whose lead began at the australian championships, what was the shortest span of years led?
SQL: SELECT MIN("span_of_years_led") FROM "chronological_list_of_grand_slam_singles" WHERE "tournament_at_which_lead_began"='Australian Championships';

Question: At which tournament did william renshaw begin his lead when he had won 7 titles?
SQL: SELECT "tournament_at_which_lead_began" FROM "chronological_list_of_grand_slam_singles" WHERE "player"='William Renshaw' AND "titles_won_at_point_of_lead"=7;

Question: At what tournament did pete sampras begin his lead?
SQL: SELECT "tournament_at_which_lead_began" FROM "chronological_list_of_grand_slam_singles" WHERE "player"='Pete Sampras';