instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'an orange cat is lounging on a gray couch'. How many words contain the letter 'c' in the sentence.
answer:
2


question:
Sentence: 'the zebra is showing his rear end to the camera'. How many words contain the letter 'r' in the sentence.
answer:
3


question:
Sentence: 'an old man playing tennis on a tennis court'. How many words contain the letter 's' in the sentence.
answer:

2