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 bathroom sink and mirror with someone personal belongings on it'. How many words start with the letter 'p' in the sentence.
1

Sentence: 'a man on a beach throwing a frisbee while two people walking the water'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a picture of a kitchen cabinets under construction'. How many words start with the letter 'o' in the sentence.

1