Sentence:  From the point of view of syntactic analysis the head word in the statement is the predicator has <WSD>broken</WSD> , and from the point of view of meaning it would seem that the trouble centers in the breaking ; but dominant stress will be assigned to broken only in rather exceptional versions of the sentence . 
Meaning of the word marked with <WSD> tags:  destroy the integrity of; usually by force; cause to separate into pieces or fragments