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 person with blue sneakers and jeans with one foot on a skateboard and the other foot on the ground'. How many words start with the letter 'o' in the sentence.

A: 4
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Q: Sentence: 'a tennis player swings his racket on a serve'. How many words start with the letter 'o' in the sentence.

A: 1
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Q: Sentence: 'a childs first birthday cake topped with a gum paste teddy bear'. How many words start with the letter 'b' in the sentence.

A:
2
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