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 woman walking up to a double decker bus that has stopped'. How many words start with the letter 'w' in the sentence.
answer:
2


question:
Sentence: 'a clock tower atop a tall building with a lighting rod'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a number of small boats in a body of water'. How many words start with the letter 'b' in the sentence.
answer:

2