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 photograph of a vase through its glass showcase'. How many words start with the letter 'i' in the sentence.
1

Sentence: 'a bathroom that has a toilet and window in it'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'an army man cutting a cake with young children watching'. How many words start with the letter 'c' in the sentence.

3