TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a castle like bed room that has the era of templar knight similarities'. Find frequency of the letter 'm'

SOLUTION: 3

PROBLEM: Sentence: 'a black horse with a white dot on its forehead'. Find frequency of the letter 't'

SOLUTION: 4

PROBLEM: Sentence: 'a young man in a buisness suit laying on his back in the sand'. Find frequency of the letter 'a'

SOLUTION:
6