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

Q: Sentence: 'two zebras standing around while a third zebra drinks from a pond'. Find frequency of the letter 's'

A: 3
****
Q: Sentence: 'this is a close up view of a tennis player during the game'. Find frequency of the letter 't'

A: 3
****
Q: Sentence: 'two people on top of a mountain wearing skis'. Find frequency of the letter 's'

A:
2
****