16. The system of claim 15 , the operations further comprising: receiving a second search query from a second user device, wherein the first search query has been determined to relate to another entity of the first entity type, wherein a plurality of entities of a third entity type have a predetermined relationship with the another entity, and wherein the third entity type is different from the first entity type.
15. The system of claim 9 , wherein the second entity type is the same as the first entity type.