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 closeup picture of a polar bears head'. How many words start with the letter 'a' in the sentence.
answer:
2


question:
Sentence: 'a photo of a waterway with several boats along the shore'. How many words start with the letter 'w' in the sentence.
answer:
2


question:
Sentence: 'a picture of a zebra that is walking in the grass'. How many words start with the letter 'z' in the sentence.
answer:

1