Table: salmson_aircooled_aeroengines
Columns: name
cyl
bore
capacity
power
weight

Question: What is the bore for a 9-cyl radial on a 9 AD?
SQL: SELECT "bore" FROM salmson_aircooled_aeroengines WHERE "cyl" = '9-cyl radial' AND "name" = '9 ad'

Question: What bore goes with an 18 AB?
SQL: SELECT "bore" FROM salmson_aircooled_aeroengines WHERE "name" = '18 ab'