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: 'woman riding on the back of a horse inside a building'. How many words start with the letter 'o' in the sentence.

A: 2
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Q: Sentence: 'a mother bear and her two young are crossing a shallow river'. How many words start with the letter 'a' in the sentence.

A: 4
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Q: Sentence: 'a cat looking past the person that is holding the camera'. How many words start with the letter 'p' in the sentence.

A:
2
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