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: 'there are two men sitting on a couch playing video games'. Find frequency of the letter 'v'

SOLUTION: 1

PROBLEM: Sentence: 'the baby is sitting on the couch with glasses'. Find frequency of the letter 'y'

SOLUTION:
1