instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'two women in an arena with a cow'. How many words contain the letter 'u' in the sentence.
answer:
0


question:
Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' in the sentence.
answer:
2


question:
Sentence: 'a white paper plate topped with two hot dogs on buns'. How many words contain the letter 'n' in the sentence.
answer:

2