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

Q: Sentence: 'the little girl is flying her kite in the field'. Find frequency of the letter 'i'

A: 7
****
Q: Sentence: 'a dog on a couch near many pillows'. Find frequency of the letter 'p'

A: 1
****
Q: Sentence: 'train on tracks with water tower for davis junction in the rear'. Find frequency of the letter 'a'

A:
5
****