Relation contains hyphens

[gajazlikovac]

🐛 Describe the bug

When relations contain hyphens (-), they cannot be added to neo4j, due to the following error:

ERROR:root:Error adding memory: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input '-': expected a parameter, '&', '*', ':', 'WHERE', ']', '{' or '|' (line 9, column 48 (offset: 411))
 "                MERGE (source)-[r:definiert_icp-kriterien_für]->(destination)"

To recreate try using "ICP-Kriterien" in some context. Most likely it will also fail on any other non-ASCII character.

[gajazlikovac]

Also I noticed that relations are written in lowercase, and I think that the common practice in Cypher is uppercase for relations.