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 person carrying a surfboard on a beach', Sentence2: 'the seat of the toilet is made out of a dark wood'. Is the frequency of the word 'dark' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a man in a white uniform holds a bat with two other men on a baseball field', Sentence2: 'a meal is sitting on plates and a tray'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'two people riding on top of two elephants', Sentence2: 'a group of skiers decend a snowy mountain hill'. Is the frequency of the word 'on' in two sentences equal?
Example Output:
No