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 brown bull is standing in his pen and some trees', Sentence2: 'a road sign sitting next to a road and a building'. Is the frequency of the word 'and' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'two people on skis soaring over the water', Sentence2: 'a flag flying with kites all around it'. Is the frequency of the word 'kites' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a pancake cut in to squares ready to be eaten', Sentence2: 'a travelling son and father wait for the train on a summer day'. Is the frequency of the word 'be' in two sentences equal?
Example Output:
No