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 picture of a very clean bed in the room'. How many words start with the letter 'r' in the sentence.
1

Sentence: 'there is a very large table with many foods and people sitting at it'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'cup of coffee on the desk in front of keyboard'. How many words start with the letter 'o' in the sentence.

3