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 person in a body of water with a surf board'. How many words start with the letter 'b' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'many colorful umbrellas hang over a colorful street'. How many words start with the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a bunch of little measuring spoons on a table'. How many words start with the letter 'a' in the sentence.
[EX A]:
2