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 cat inside a window looking out near another cat'. How many words start with the letter 'n' in the sentence.

A: 1
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Q: Sentence: 'a man holding a nintendo wii game controller'. How many words start with the letter 'a' in the sentence.

A: 2
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Q: Sentence: 'a stop sign above a all way sign'. How many words start with the letter 's' in the sentence.

A:
3
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