Table: convoy_sc7_ships
Columns: name
flag
cargo
fate
date_of_attack

Question: What is the name of the ship with pit props as Cargo sunk by u-48 *?
SQL: SELECT "name" FROM convoy_sc7_ships WHERE "fate" = 'sunk by u-48 *' AND "cargo" = 'pit props'

Question: What is the Date of attack of the ship with iron ore sunk by u-101 *?
SQL: SELECT "date_of_attack" FROM convoy_sc7_ships WHERE "fate" = 'sunk by u-101 *' AND "cargo" = 'iron ore'