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 guy surfs a wave with his surfboard'. Find frequency of the letter 's'

A: 4
****
Q: Sentence: 'a shop sits next to several houses in a small town area'. Find frequency of the letter 'n'

A:
3
****