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 little boy enjoying a slice of pepperoni pizza in a restaurant', Sentence2: 'a parent is pulling their child down the ski slope'. Is the frequency of the word 'pizza' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a stop sign under a street lamp is shining at night', Sentence2: 'a young man poses for a camera while wearing a tie but no shirt'. Is the frequency of the word 'shirt' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'three sheep one grazing on grass while a dog stands behind them', Sentence2: 'a row of elephants are near a woman who has a purse and a surprised look on her face'. Is the frequency of the word 'and' in two sentences equal?
Example Output:
No