In this task, you need to count the number of times the given letter appears in the given sentence.
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Question: Sentence: 'a wedding cake with pink roses on a silver plate'. Find frequency of the letter 'a'

Answer: 4


Question: Sentence: 'group of cars on the road with the sun setting behind it'. Find frequency of the letter 'd'

Answer: 2


Question: Sentence: 'a yellow truck next to a whtie  truck'. Find frequency of the letter 'y'

Answer:
1