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.
--------
Question: Sentence: 'a cat is laying in a bowl with a receipt'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a fire truck and an ambulance driving down the street'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'a view from above of a toilet in a bathroom'. How many words start with the letter 'a' in the sentence.

Answer:
4