TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a woman holds a wine glass upside down while wearing rabbit ears and staring at a bottle of wine'. Find frequency of the letter 'a'

SOLUTION: 11

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 red, grey and white airplane passes overhead'. Find frequency of the letter 'd'

SOLUTION:
3