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.

[Q]: Sentence: 'two couples sit on a bench in front of bushes with pink flowers'. How many words start with the letter 'o' in the sentence.
[A]: 2


[Q]: Sentence: 'horses are being walked around a race track'. How many words start with the letter 't' in the sentence.
[A]: 1


[Q]: Sentence: 'a plate of food with two hot dogs wrapped in bread with cheese and beans on it'. How many words start with the letter 'w' in the sentence.
[A]:
3