17. The system of claim 10 , wherein the input is further associated with a first context comprising at least one of a geographic location, date, day, or time associated with the input.
17. The system of claim 10 , wherein the input is further associated with a first context comprising at least one of a geographic location, date, day, or time associated with the input. 18. The system of claim 17 , wherein the circuitry of the server is further configured, when increasing the respective relevance value associated with each content item of the subset, to: determine the first context associated with the input; compare the first context with a respective context associated with each content item of the plurality of content items; determine, based on the comparing, that a second context associated with a second content item of the plurality of content items comprises an attribute of the first context; and increase the respective relevance value associated with the second content item.