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.
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Question: Sentence: 'a woman sitting on some stairs by a ball and backpack'. How many words start with the letter 'b' in the sentence.

Answer: 3


Question: Sentence: 'a boy wearing blue has a skateboard in the air near a black railing'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'three red leather suitcases of varying sizes and shapes'. How many words start with the letter 's' in the sentence.

Answer:
3