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 standing on a green field next to a river flying a kite'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'many sheep gather on a truck and in a field eating hay'. How many words start with the letter 'h' in the sentence.
1

Sentence: 'there is a young girl smiling at the camera'. How many words start with the letter 'a' in the sentence.

2