There are three crates of fruit that have washed up on the beach. One contains apples, one contains oranges and one is an equal mixture of apples and oranges. Each crate is labelled with its contents, Apples, Oranges, and, Apples and Oranges. The puzzle is that each crate is incorrectly marked. You can't see the contents of any of the crates, and you are only allowed to put your hand into one crate and remove one piece of fruit. Your task is to label all the crates correctly.