TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a little girl sitting on the floor reading a book'. How many words contain the letter 'n' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a box filled with fresh fruit and vegetables'. How many words contain the letter 'w' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'several cormorants sitting together on a rock in a muddy body of water'. How many words contain the letter 'b' in the sentence.

SOLUTION:
1