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: 'decorative objects on a counter in front of a framed picture'. How many words start with the letter 'o' in the sentence.
3

Sentence: 'a fire truck and an ambulance driving down the street'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'a man walks about in a quiet intersection with the traffic lights changing behind him'. How many words start with the letter 'i' in the sentence.

2