TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'this bus waits at a bus station for passengers to board'. How many words contain the letter 'e' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a line of very tall buildings next to a clock tower'. How many words contain the letter 'o' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a double decker bus stops for passengers in the roadway'. How many words contain the letter 'p' in the sentence.

SOLUTION:
2