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 tall zebra grazing on a lush green field'. How many words start with the letter 't' in the sentence.
answer:
1


question:
Sentence: 'there is a group of people with horses and a wagon'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a man riding a wave on a white surfboard'. How many words start with the letter 'a' in the sentence.
answer:

3