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 bathroom that has a toilet and window in it'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a little boy that is sitting down with a phone'. How many words start with the letter 'p' in the sentence.
1

Sentence: 'a man standing in front of a metal pizza oven putting in a pizza'. How many words start with the letter 'o' in the sentence.

2