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: 'two men on motorcycles and wearing helmets'. How many words start with the letter 'w' in the sentence.

A: 1
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Q: Sentence: 'the two images show a bathroom sink and a stool beside a toilet'. How many words start with the letter 'a' in the sentence.

A: 4
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Q: Sentence: 'a professional motorcyclist turning a bend on track'. How many words start with the letter 'b' in the sentence.

A:
1
****