In this task, you are given a word. You should respond with a valid sentence which contains the given word. Make sure that the sentence is grammatically correct. You may use the word in a different tense than is given. For example, you may use the word 'ended' in the output where the given input word is 'end'.

rotate
We rotate the lead soprano every night.

formula
He gave us a general formula for attacking polynomials.

cot

A roller cot (the clothing of a drawing roller in a spinning frame).

