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 young woman is posing on a wooden table'. How many words start with the letter 'w' in the sentence.
answer:
2


question:
Sentence: 'a person riding their mountain bike off road'. How many words start with the letter 'r' in the sentence.
answer:
2


question:
Sentence: 'a pizza rolls and an italian sandwich in a row'. How many words start with the letter 'a' in the sentence.
answer:

4