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 lady flies a kite with double strings into a big blue sky', Sentence2: 'a airplane that is flying in the sky'. Is the frequency of the word 'sky' in two sentences equal?
Example Output: Yes

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: 'this is a tray with food and a drink on it', Sentence2: 'two giraffes walk across the planes with shrubbery in the background'. Is the frequency of the word 'this' in two sentences equal?
Example Output:
No