In this task, you need to count the number of words in a sentence that contain the given letter

Sentence: 'a man in a white turban drives a motorcycle along a dirty road'. How many words contain the letter 'd' in the sentence.
3

Sentence: 'the train needs to be serviced so it is o the truck'. How many words contain the letter 'n' in the sentence.
2

Sentence: 'the three birds are looking toward the water'. How many words contain the letter 'b' in the sentence.

1