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: 'green plants growing in a garden on the ground'. How many words start with the letter 'g' in the sentence.

A: 4
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Q: Sentence: 'the pigeons are walking around in the park around the benches'. How many words start with the letter 'b' in the sentence.

A: 1
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Q: Sentence: 'several skiers traveling down a snowy slope near mountains'. How many words start with the letter 's' in the sentence.

A:
4
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