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 little white airplane that is parked on some concrete'. How many words start with the letter 'p' in the sentence.

A: 1
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Q: Sentence: 'a light shines on five clocks showing times in different zones'. How many words start with the letter 'f' in the sentence.

A: 1
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Q: Sentence: 'an edifice with a clock which reads mexican american food'. How many words start with the letter 'a' in the sentence.

A:
3
****