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 person wearing pants and a jacket pulling luggage'. How many words start with the letter 'p' in the sentence.
3

Sentence: 'a black and white photo of a man in the street feeding cats and dogs'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'a stop sign on the corner of a street'. How many words start with the letter 'a' in the sentence.

2