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 small airplane sitting on top of a runway'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a fire truck and an ambulance driving down the street'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a hotel room with a bed nightstand and table'. How many words start with the letter 'a' in the sentence.
answer:

3