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 room that has a table with chairs around it', Sentence2: 'a lot of plants and greenery with a train in the background'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a man is leaning over in the snow and casting a shadow', Sentence2: 'a boy performing a skateboard trick in midair'. Is the frequency of the word 'over' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a bus traveling through town ready to pick up passengers and drop them off', Sentence2: 'a little baby boy wearing a neck tie'. Is the frequency of the word 'up' in two sentences equal?
Example Output:
No