instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a person riding a camel in front of a truck'. Find frequency of the letter 't'
answer:
2


question:
Sentence: 'a bird is perched on a container in a person's hand'. Find frequency of the letter 'c'
answer:
2


question:
Sentence: 'zebras and rhinos eating some died up grass'. Find frequency of the letter 's'
answer:

5