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.

Sentence: 'a very tall tower with a clock on each of its sides'. How many words end with the letter 'f' in the sentence.
1

Sentence: 'a person is typing on a laptop computer'. How many words end with the letter 'a' in the sentence.
2

Sentence: 'two young ladies carrying surfboards out into the water'. How many words end with the letter 's' in the sentence.

2