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 crowd of people on the street one of which is taking pictures with a cell phone'. How many words start with the letter 'o' in the sentence.

Answer: 4


Question: Sentence: 'a couple of giraffes that are walking around'. How many words start with the letter 'c' in the sentence.

Answer: 1


Question: Sentence: 'a snowboarder is doing a trick mid air'. How many words start with the letter 'a' in the sentence.

Answer:
3