TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a jet flying through the clear blue sky'. Find frequency of the letter 'g'

SOLUTION: 2

PROBLEM: Sentence: 'a pizza pie sitting on a wooden table with tongs'. Find frequency of the letter 't'

SOLUTION: 5

PROBLEM: Sentence: 'a woman holds her stomach in front of some pizza'. Find frequency of the letter 'm'

SOLUTION:
3