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 person holding a cell phone in their hand'. How many words start with the letter 'h' in the sentence.
answer:
2


question:
Sentence: 'a man holding a nintendo wii game controller'. How many words start with the letter 'a' in the sentence.
answer:
2


question:
Sentence: 'a young boy is brushing his teeth by a sink'. How many words start with the letter 'b' in the sentence.
answer:

3