instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'two people wearing snowboards sitting on a snowy slope'. Find frequency of the letter 's'
answer:
5


question:
Sentence: 'a downhill skier with snow plumes behind them'. Find frequency of the letter 'i'
answer:
4


question:
Sentence: 'a dog that is standing next to a bike'. Find frequency of the letter 'h'
answer:

1