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 couple of people flying a kite in a field'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a tennis player swings his racket on a serve'. How many words start with the letter 'o' in the sentence.

Answer: 1


Question: Sentence: 'a ratchet ass room with a shelf on the wall'. How many words start with the letter 'r' in the sentence.

Answer:
2