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

Example Input: Sentence1: 'two black cats sitting on top of a white desk', Sentence2: 'a computer screen and keyboard on a desk'. Is the frequency of the word 'cats' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a white truck travelling on a street pass homes', Sentence2: 'a paper plate with a hot dog and french fries'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a group of people riding kite boards on top of the ocean', Sentence2: 'a prop plane with one person inside is sitting on a runway'. Is the frequency of the word 'on' in two sentences equal?
Example Output:
Yes