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 sheep on a hill with green grass', Sentence2: 'spectators watch baseball players play a game on the field'. Is the frequency of the word 'on' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'several people walking around horses in a wooded area', Sentence2: 'a brilliantly colored bird sitting on a tree branch'. Is the frequency of the word 'tree' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a man is walking down a main street', Sentence2: 'a bunch of people walking in a parade of some sort'. Is the frequency of the word 'man' in two sentences equal?
Example Output:
No