Here are some examples of sentences from a PC call center's logs, along with the extracted dependency pairs: customer broke a tp customer...break, break...tp end user broke a ThinkPad end user...break, break...ThinkPad In these examples, "customer" and "end user" and "tp" and "ThinkPad" can be assumed to have the same meaning in terms of this analysis for the call center's operations.
these two sentences have the same meaning, but the differences in expressions prevent us from recognizing their iden-tity.