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 man sitting on the floor of a living room while a child stands on a snowboard next to him'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a young man holding a tennis racquet and its case'. How many words start with the letter 'h' in the sentence.
answer:
1


question:
Sentence: 'a street that has a van parked on the side near a tree'. How many words start with the letter 's' in the sentence.
answer:

2