instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'one woman is arranging the other woman's hair'. Find frequency of the letter 'o'
answer:
4


question:
Sentence: 'a tennis player that is running to get the tennis ball'. Find frequency of the letter 't'
answer:
7


question:
Sentence: 'red shower curtains in a dimly lit bathroom'. Find frequency of the letter 'i'
answer:

4