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: 'japanese food of meat and vegetable are on a plate'. How many words start with the letter 'o' in the sentence.
[A]: 2


[Q]: Sentence: 'a trio of women playing the nintendo wii at a showroom'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a passenger bus on a city street and a bicycle parked on the road'. How many words start with the letter 'b' in the sentence.
[A]:
2