In this task, answer 'Yes' if the frequency of the given word in the two sentences is equal, else answer 'No'.

Example Input: Sentence1: 'a big metal clock on the side of a building', Sentence2: 'two men boogie boarding on a wave'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a baby wearing a pink top is sleeping in bed with some pillows', Sentence2: 'a man sitting on top of a train traveling through a forest hillside'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a person on skis high in the air at night', Sentence2: 'a man holding a surfboard on top of a sandy beach'. Is the frequency of the word 'skis' in two sentences equal?
Example Output:
No