TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a full plate of food that includes rice and broccoli and carrots'. Find frequency of the letter 's'

SOLUTION: 2

PROBLEM: Sentence: 'supplies and tools are arranged on the floor with a hard hat and bag'. Find frequency of the letter 'n'

SOLUTION: 4

PROBLEM: Sentence: 'a blue train with the words " do not hump " written on it'. Find frequency of the letter 'm'

SOLUTION:
1