instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the little girl is flying her kite in the field'. Find frequency of the letter 'i'
answer:
7


question:
Sentence: 'party cakes in plastic containers, with a cake with a plastic santa claus and reindeer on top'. Find frequency of the letter 's'
answer:
6


question:
Sentence: 'the two canoes are full of happy rowers'. Find frequency of the letter 'l'
answer:

2