instruction:
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.
question:
Sentence: 'person in profile and sunlight at a barred window'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a close up view of a mans hands as he operates a smart phone'. How many words start with the letter 'c' in the sentence.
answer:
1


question:
Sentence: 'a railroad train driving past an empty street'. How many words start with the letter 'a' in the sentence.
answer:

2