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: 'some signs buildings trees bushes a green and white sign'. How many words start with the letter 's' in the sentence.
answer:
3


question:
Sentence: 'the men are holding on to surfboards outside'. How many words start with the letter 'o' in the sentence.
answer:
2


question:
Sentence: 'a brown bull looking to the side while standing in grass'. How many words start with the letter 'b' in the sentence.
answer:

2