In this task, you need to count the number of words in a sentence that end with the given letter. Answer with numbers and not words.

Q: Sentence: 'a man attempting to instruct a small child to use a mechanical toothbrush'. How many words end with the letter 'o' in the sentence.

A: 2
****
Q: Sentence: 'a bike stands on his dirtbike in a circus'. How many words end with the letter 'n' in the sentence.

A: 2
****
Q: Sentence: 'a giraffe standing in front of a building with a doorway'. How many words end with the letter 'g' in the sentence.

A:
2
****