Sentence:  Strikes should be declared illegal against corporations because disagreements would have to be settled by government representatives acting as controllers of the corporation whose responsibility to the state would now be defined against proprietorship because employees and proprietors must <WSD>be</WSD> completely interdependent , as they are each a part of the whole . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)