Role:developer; What: generate graphs from neo4j using shortest path queries specifying disjunctive sets relations; why: drive connectomics browser and gen trees/graphs from templates.

[dosumis]

These types of queries require edge types to correspond to object properties. In the current OLS representation, simple existential restrictions on classes are represented using edges of type 'Related'. In a proposed extension to OLS (#16), Related edges will also be used to specify OPAs (OWL Facts) and typing via simple anonymous class expressions (R some C).

We currently flip these edges after loading using OLS so that 'Related' is an edge attribute and the edge type is an object property label modified to change spaces to underscores.

For reasons described in #19 these flipped edges should be generated during initial loading of the Neo4J DB by OLS loading scripts.

This requires:

• A system for testing and ensuring object property label uniqueness.
• A more complete specification for removal of spaces and special characters from rdfs:labels to generate edge types.
• Modification of OLS loading code to generate these edges (TBD - Should these be in addition to 'Related' edges? Main reason to keep standard OLS edge schema would be so that we could re-use the OLS API for VFB).