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 small airplane sitting on top of a runway'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a laptop and some computers on a desk'. How many words start with the letter 'd' in the sentence.

Answer: 1


Question: Sentence: 'an airplane is flying through the air during the day'. How many words start with the letter 'a' in the sentence.

Answer:
3