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

Q: Sentence: 'two elephants walking on cement next to wall'. Find frequency of the letter 'n'

A: 5
****
Q: Sentence: 'a table topped with a cupcake on a picture of a cupcake'. Find frequency of the letter 'o'

A: 3
****
Q: Sentence: 'a bird perched on a thin tree limb'. Find frequency of the letter 'c'

A:
1
****