CREATE TABLE "motorcycle_grand_prix_results" (
  "year" real,
  "class" text,
  "team" text,
  "points" real,
  "rank" text,
  "wins" real
);

Question: What is the sum of Points for 250cc class, ranked 13th, later than 1955?
SQL: SELECT SUM("points") FROM "motorcycle_grand_prix_results" WHERE "class"='250cc' AND "rank"='13th' AND "year">1955;

Question: What is the Class for a year later than 1958, with 4 points?
SQL: SELECT "class" FROM "motorcycle_grand_prix_results" WHERE "year">1958 AND "points"=4;

Question: What is the average Year when there were more than 3 points, for MV Agusta and ranked 10th?
SQL: SELECT AVG("year") FROM "motorcycle_grand_prix_results" WHERE "points">3 AND "team"='mv agusta' AND "rank"='10th';

Question: What Team has a Class of 350cc, with less than 13 points in 1959?
SQL: SELECT "team" FROM "motorcycle_grand_prix_results" WHERE "class"='350cc' AND "points"<13 AND "year"=1959;