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 woman holding an umbrella standing next to a black dog', Sentence2: 'a man holding a flashlight hold an umbrella also'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'an rv is pulled alongside a roadside parking area', Sentence2: 'a man surfing a wave in the ocean'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a vase of roses sits alone on a table', Sentence2: 'yachts in a harbor at sunset with a city in the background'. Is the frequency of the word 'at' in two sentences equal?
Example Output:
No