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.

[EX Q]: Sentence: 'the man is laying in bed taking his temperature'. How many words start with the letter 'i' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a shot of the tops of several tall buildings in a city'. How many words start with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a group of skiers on the foothills of a huge mountain range'. How many words start with the letter 'o' in the sentence.
[EX A]:
3