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

[Q]: Sentence: 'a teddy bear is sitting on a heart shaped patio chair outside'. Find frequency of the letter 'i'
[A]: 6


[Q]: Sentence: 'town clocks affixed to a tall, brick building'. Find frequency of the letter 'r'
[A]: 1


[Q]: Sentence: 'toothbrushes and toothpaste on the edge of a sink'. Find frequency of the letter 'o'
[A]:
6