Utterance: call kent street mobile Annotation: calling:call:contact -- call [kent street]<street> [mobile]<phonetype> Question: We run into quite a lot of utterances in the calling domain and with a noun that is likely to be mentioned with 'phonetype', yet some of the utterances don't have an obvious 'contact' object, making the 'phone_type' mention unchoosable. This example above is certainly one of such and extremely interesting. Kindly tell us your idea on this. Thanks a lot!