Table: peseta_coins
Columns: value
equiv
diameter
weight
composition

Question: What is the value of the coin weighing 10.5 g and made of cupronickel?
SQL: SELECT "value" FROM peseta_coins WHERE "composition" = 'cupronickel' AND "weight" = '10.5 g'

Question: What is the coin with a € equivalency of 0.30 made of?
SQL: SELECT "composition" FROM peseta_coins WHERE "equiv" = '0.30'

Question: What is the coin that weighs 3 g made of?
SQL: SELECT "composition" FROM peseta_coins WHERE "weight" = '3 g'

Question: What is the diameter of the coin with a € equivalence of 0.60?
SQL: SELECT "diameter" FROM peseta_coins WHERE "equiv" = '0.60'

Question: How much does the coin with a 14mm diameter weigh?
SQL: SELECT "weight" FROM peseta_coins WHERE "diameter" = '14mm'