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.

Q: Sentence: 'a woman is holding the hand of a boy who is leaning on a fire hydrant'. How many words start with the letter 'a' in the sentence.

A: 3
****
Q: Sentence: 'some nice decorations left on a window pane'. How many words start with the letter 'l' in the sentence.

A: 1
****
Q: Sentence: 'skiers skiing down a hill with mountains in the background'. How many words start with the letter 'a' in the sentence.

A:
1
****