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 skateboarder doing a trick at a skate park'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a man pulls a rolling suitcase and is wearing a suit'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a man on his cell phone at a shops window'. How many words start with the letter 'a' in the sentence.
answer:

3