TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'the child is waving a small flag as she stands near two women'. Find frequency of the letter 'g'

SOLUTION: 2

PROBLEM: Sentence: 'a pizza is in a box on a table outside'. Find frequency of the letter 'u'

SOLUTION: 1

PROBLEM: Sentence: 'a train on a train track with power lines above'. Find frequency of the letter 't'

SOLUTION:
4