And that all sorts of things , particularly in the tourist domain , can be represented in terms of uh source , path and goal. So the idea would be could we build an analyser that would take an utterance and say " Aha ! th this utterance is talking about an attempt to reach a goal. The goal is this , the pers the , uh traveller is that , uh the sor w where we are at now is is this , they 've mentioned possible obstacles , et cetera. " So th the  and this is an  again attempt to get very wide coverage. So if you can do this , then the notion would be that across a very large range of domains , you could use this deep conceptual basis as the interface.
Mm - hmm. Mm - hmm.
And then , uh The processing of that , both on the input end , recognizing that certain words in a language talk about containers or goals , et cetera , and on the output end , given this kind of information , you can then uh make decisions about what actions to take. Provides , they claim , a very powerful , general notion of deep semantics. So that 's what we 're really doing.
Mm - hmm.