14. The hardware memory device or hardware storage device of claim 12 , wherein the first phrase is different than the second phrase and the first tag is the same as the second tag.
14. The hardware memory device or hardware storage device of claim 12 , wherein the first phrase is different than the second phrase and the first tag is the same as the second tag. 18. The hardware memory device or hardware storage device of claim 14 , wherein the first tag and the second tag are a sequence of at least two context words that appear before the first phrase in the first query and before the second phrase in the second query.