In this task, you need to count the number of times the given letter appears in the given sentence.

Sentence: 'a row of vintage cars in a grassy field'. Find frequency of the letter 'v'
1

Sentence: 'a man in a suit makes the first slice into a cake'. Find frequency of the letter 't'
4

Sentence: 'a person sitting on top of a white and purple boat in water'. Find frequency of the letter 'g'
1