Trenchant in a sentence?

A detective must be very trenchant in order to do his job right.

The man at the bakery trenchantly cut the loaf of bread.

The woman at the bakery trenchantly cut the loaf of bread.

The trenchant boy found himself in trouble when he threw the cookies all over the table and made his mom pick them up.

When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).