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

Sentence: 'a little boy standing near a couch and a table'. Find frequency of the letter 'i'
2

Sentence: 'people seated on a table looking very happy'. Find frequency of the letter 'g'
1

Sentence: 'a bus driving down a street in a small city'. Find frequency of the letter 'c'

1