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 silver and blue amtrak train sitting below tall buildings'. How many words start with the letter 'b' in the sentence.
answer:
3


question:
Sentence: 'two men on ski boards in the midst of a blizzard'. How many words start with the letter 's' in the sentence.
answer:
1


question:
Sentence: 'two people with surfboards on an empty beach'. How many words start with the letter 't' in the sentence.
answer:

1