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

Input: Consider Input: Sentence: 'decorated baseball cake in a clear plastic box'. Find frequency of the letter 'k'

Output: 1


Input: Consider Input: Sentence: 'a bowl of granola with raspberries and honey on top with a spoon'. Find frequency of the letter 'w'

Output: 3


Input: Consider Input: Sentence: 'a bridge over water with a canoe in it'. Find frequency of the letter 'i'


Output: 4