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.
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Question: Sentence: 'a group of parked bikes sitting on the side of a road'. How many words start with the letter 'o' in the sentence.

Answer: 3


Question: Sentence: 'a colorful kite flies over top a house'. How many words start with the letter 'f' in the sentence.

Answer: 1


Question: Sentence: 'people are using their cell phones while waiting in line'. How many words start with the letter 'u' in the sentence.

Answer:
1