instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a blue train on a track next to another track'. Find frequency of the letter 'c'
answer:
2


question:
Sentence: 'a laptop computer with pictures of giraffes on the homescreen'. Find frequency of the letter 'o'
answer:
5


question:
Sentence: 'some very cute furry stuffed animals on a small bench'. Find frequency of the letter 'y'
answer:

2