In this task, you need to count the number of times the given letter appears in the given sentence.

Q: Sentence: 'people plating cake in an office meeting room'. Find frequency of the letter 'g'

A: 2
****
Q: Sentence: 'a street scene looking at the back of the stop sign'. Find frequency of the letter 't'

A: 6
****
Q: Sentence: 'a dried up riverbed could be a dangerous place to play frisbee'. Find frequency of the letter 'a'

A:
5
****