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: 'a yellow fire hydrant is placed in the grass'. How many words start with the letter 'i' in the sentence.
[A]: 2


[Q]: Sentence: 'man playing tennis on dirt court outside in the sun'. How many words start with the letter 'd' in the sentence.
[A]: 1


[Q]: Sentence: 'a photograph of a vase through its glass showcase'. How many words start with the letter 'i' in the sentence.
[A]:
1