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: 'a man at a restaurant smiling while preparing pizzas'. How many words start with the letter 'p' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man in an apron working in front of a fireplace'. How many words start with the letter 'a' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a cow that is standing in the grass'. How many words start with the letter 't' in the sentence.
[EX A]:
2