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: 'a fighter jet on a runway with a cover over the cockpit'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a brown and white dog standing on a lush green field'. How many words start with the letter 'b' in the sentence.
answer:
1


question:
Sentence: 'a cat laying on top of a laptop computer on a bed'. How many words start with the letter 'a' in the sentence.
answer:

3