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 us air force sitting on a runway near a field'. How many words start with the letter 'a' in the sentence.

A: 4
****
Q: Sentence: 'some black birds sitting on some rocks and some water'. How many words start with the letter 'b' in the sentence.

A: 2
****
Q: Sentence: 'two sandwiches sit on a white plate near a glass of soda'. How many words start with the letter 's' in the sentence.

A:
3
****