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 on a surfboard in the midst of an ocean wave'. How many words start with the letter 'o' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a guy looks at a tablet and holds his skateboard while riding public transportation'. How many words start with the letter 'l' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a woman standing on top of a tennis court with a racquet'. How many words start with the letter 'o' in the sentence.
[EX A]:
2