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.

Sentence: 'a man holding a white frisbee while standing on top of a  beach'. How many words start with the letter 'o' in the sentence.
2

Sentence: 'a man without a shirt riding a skateboard'. How many words start with the letter 'r' in the sentence.
1

Sentence: 'a very large group of people waiting for the signal to cross the street'. How many words start with the letter 't' in the sentence.

3

