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 door is closed with a sign on it glass cover'. How many words start with the letter 'a' in the sentence.

A: 2
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Q: Sentence: 'a bed room with a dresser a wardrobe and a bed'. How many words start with the letter 'a' in the sentence.

A: 5
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Q: Sentence: 'a spotted giraffe walking across a plain land'. How many words start with the letter 'a' in the sentence.

A:
3
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