Lessons-Learned Use-Case for demo

I think Neo4J could be invaluable and trying to 'sell' it to the company I work for; as such, I'm providing a demo on Monday for (initially) a 'lessons learned' (or as I call it a 'near-miss') database.

I found https://neo4j.com/blog/nasa-critical-data-knowledge-graph/
And trying to get the Cypher from that Github project to run properly on the 4.1.1 but the Cypher seems out of date and doesn't tally with the Cypher Reference Card 4.1, I'm systemmatically changing it as I learn Cypher but running out of time.

Does anyone have a newer example (or updated version of the Cypher) that works with 4.1.1 for a lessons learned/near miss database please?

Thanks
Kevin