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 blue and white sign attached to a building'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'a green fire hydrant is in the middle of an open dirt hole in a construction area'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'a hand holding a cell phone into the air to record video'. How many words start with the letter 't' in the sentence.

Answer:
2