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: 'a colorful kite flies over top a house'. How many words start with the letter 'f' in the sentence.
1

Sentence: 'a person walking on a street with a umbrella'. How many words start with the letter 's' in the sentence.
1

Sentence: 'a kid with a baseball bat standing by another person'. How many words start with the letter 'a' in the sentence.

3