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'.

principle
The principle of the internal combustion engine.

agonist
When bending the elbow the biceps are the agonist.

quibble

Let's not quibble over pennies.