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 baseball player swinging a bat while a catcher is behind him with his mitt out'. How many words start with the letter 'w' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'two men on ski boards in the midst of a blizzard'. How many words start with the letter 's' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'young boys many sitting on the floor in uniforms with white shirts and ties'. How many words start with the letter 'a' in the sentence.
[EX A]:
1

