CREATE TABLE "drivers_and_constructors" (
  "entrant" text,
  "constructor" text,
  "chassis" text,
  "engine" text,
  "tyres" text,
  "driver" text,
  "rounds" text
);

Question: What is the name of the entrant with a chassis of m185b m186?
SQL: SELECT "entrant" FROM "drivers_and_constructors" WHERE "chassis"='m185b m186';

Question: How many rounds have a chassis of thl2?
SQL: SELECT "rounds" FROM "drivers_and_constructors" WHERE "chassis"='thl2';