Table: ens_1973_race
Columns: year
chassis
engine_s
tyres
points

Question: What engine has 2 points?
SQL: SELECT "engine_s" FROM ens_1973_race WHERE "points" = '2'

Question: What tyres are associated with a year after 1974 and 5 points?
SQL: SELECT "tyres" FROM ens_1973_race WHERE "year" > 1974 AND "points" = '5'

Question: What is the engine(s) on the car before 1978 with ensign n177 chassis?
SQL: SELECT "engine_s" FROM ens_1973_race WHERE "chassis" = 'ensign n177' AND "year" < 1978

Question: What tyres have 1 point and an ensign n177 chassis?
SQL: SELECT "tyres" FROM ens_1973_race WHERE "points" = '1' AND "chassis" = 'ensign n177'