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

Q: Sentence: 'a log in the water with three birds perched on it'. Find frequency of the letter 'r'

A: 4
****
Q: Sentence: 'a toilet sits in a cluttered bathroom next to a sink'. Find frequency of the letter 'a'

A: 4
****
Q: Sentence: 'a train engine is traveling down some tracks'. Find frequency of the letter 'd'

A:
1
****