8. The computing device of claim 1 , wherein determining the overlap further comprises: determining a lexical overlap between at least one word of the utterance and at least one word in a title or property of the at least one of the plurality of items.
8. The computing device of claim 1 , wherein determining the overlap further comprises: determining a lexical overlap between at least one word of the utterance and at least one word in a title or property of the at least one of the plurality of items. 10. The computing device of claim 8 , wherein determining the lexical overlap further comprises one or more of: identifying an explicit reference to the at least one item based on a portion of text in the utterance; identifying an explicit reference to the at least one item based on a textual cue in the utterance; and identifying an explicit reference to the at least one item based on screen location data in the utterance.