This is the core of the problem. ✬

I don't eat the apple core. ✬

I don't eat the core of an apple. ✬

Tom threw the apple core into the garbage can. ✬

Tom demonstrated how to core an apple. ✬

I don't see this as a core issue. ✬

Tom is rotten to the core. ✬

Earth has a core of molten iron and nickel. ✬

Pare, core and slice two quarts of apples. ✬

Peel, core and quarter two quarts of tart apples. ✬