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

Sentence: 'the street corner is flooded deep with water'. How many words contain the letter 'f' in the sentence.
1

Sentence: 'a pair of feet wearing slippers pointed at the floor'. How many words contain the letter 'e' in the sentence.
5

Sentence: 'the display of the magic bullet blender with a price tag of 5399'. How many words contain the letter 's' in the sentence.

1