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

Sentence1: 'a terrier sits on a messy bed in front of the window', Sentence2: 'a football player wearing a uniform on a football field'. Is the frequency of the word 'messy' in two sentences equal?
No

Sentence1: 'there is a man skateboarding on the street', Sentence2: 'a brown bull is standing in his pen and some trees'. Is the frequency of the word 'a' in two sentences equal?
Yes

Sentence1: 'a airplane that is flying in the sky', Sentence2: 'a big metal clock on the side of a building'. Is the frequency of the word 'a' in two sentences equal?

No