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

Example Input: Sentence1: 'there is a air plane that is flying high in the sky', Sentence2: 'a young boy sitting at a window side table eating a donut'. Is the frequency of the word 'donut' in two sentences equal?
Example Output: 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 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a women that has a bird in her lap', Sentence2: 'a young boy catching a ground ball in a ball park'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No