In this task, you need to count the number of words in a sentence that contain the given letter
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Question: Sentence: 'a train that is pulling into the station'. How many words contain the letter 't' in the sentence.

Answer: 5


Question: Sentence: 'a train on the side of a road on the edge of the water'. How many words contain the letter 'u' in the sentence.

Answer: 0


Question: Sentence: 'two planes parked next to each other while being loaded'. How many words contain the letter 'u' in the sentence.

Answer:
0