フリー問題

問題文

In a Cypher projection, which setting declares that certain relationship types should be imported as undirected?

選択肢

1. The setting that declares relationship types as inverse indexed, which the projection reads first.
2. The orientation key inside the data configuration for the relationship, which takes the same values as a native one.
3. A second call to the projection function with the source and target nodes swapped, since there is no setting that makes the relationships undirected in one pass.
4. A list of relationship types in the general configuration parameter, which also accepts a wildcard to declare all of them undirected.