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 kneeling down under a green umbrella'. How many words start with the letter 'a' in the sentence.
answer:
2


question:
Sentence: 'a display of a variety of pizzas in a restaurant window'. How many words start with the letter 'd' in the sentence.
answer:
1


question:
Sentence: 'the snowboarder is gliding  high in the air amidst snowcovered fir trees'. How many words start with the letter 't' in the sentence.
answer:

3