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 girl who is wearing a back pack with a teddy bear in it'. How many words start with the letter 'w' in the sentence.

A: 3
****
Q: Sentence: 'a group of people and cow outside of a hut'. How many words start with the letter 'a' in the sentence.

A: 3
****
Q: Sentence: 'a towel is on the toilet seat beside a bathtub'. How many words start with the letter 'i' in the sentence.

A:
1
****