instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a smiling man holds out a card with color swatches'. How many words contain the letter 'i' in the sentence.
answer:
2


question:
Sentence: 'an airplane in the sky trailing condensation'. How many words contain the letter 'p' in the sentence.
answer:
1


question:
Sentence: 'an ana airplane as it is taking off'. How many words contain the letter 'x' in the sentence.
answer:

0