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 closeup picture of a polar bears head'. How many words start with the letter 'a' in the sentence.

A: 2
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Q: Sentence: 'a person doing a trick in the water'. How many words start with the letter 'i' in the sentence.

A: 1
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Q: Sentence: 'woman and three children standing around a cake on a counter'. How many words start with the letter 'a' in the sentence.

A:
4
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