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

Sentence: 'the bearded man is posing in a suit'. How many words start with the letter 'a' in the sentence.
1

Sentence: 'a boy standing on sand and flying a green kite'. How many words start with the letter 'f' in the sentence.
1

Sentence: 'there are several trains being serviced in the station'. How many words start with the letter 't' in the sentence.

3