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

Q: Sentence: 'a castle like bed room that has the era of templar knight similarities'. Find frequency of the letter 'm'

A: 3
****
Q: Sentence: 'a close up of a train on a track in the dark'. Find frequency of the letter 'a'

A: 6
****
Q: Sentence: 'a man plays wii while two other men sit on the couch and watch'. Find frequency of the letter 'h'

A:
5
****