Specific character of sentence with the word again

Sentences with the adverb again help to understand some important features of a coordinating construction. A verb in the function of a predicate names two different actions which are accomplished during different time: two actions of the same name. A verb in the function of a predicate which stays near homogenous elements of a sentence (a general element) may be used only once and names actions of the same name too. A general element displays similarity of actions while homogeneous elements display difference. Emphasis on the similarity is transmitted in sentences with the adverb again and in coordinating constructions with some identical homogeneous elements.