A relationship node is a query-defined graph node whose meaning approximates a relationship between other nodes. Because queries and graph edges are represented as document sets, the relationship can connect nodes like an edge. section 5.4.7
To traverse one, combine a starting node with a relationship query, then retrieve related terms from the combined context. This models a directed, linguistically defined connection without requiring a fixed edge type. section 5.4.7
Finding people in love with Jean Grey
Start with “jean grey,” traverse through “in love with,” and rank terms occurring in that context. The results include Summers, Cyclops, Xavier, Wolverine, and Magneto. section 5.4.7
