research question: are the correctly repaired bugs are hard important

We can have this RQ based on the difficulty and importance extracted from "Do automated program repair techniques repair hard and important bugs EMSE18" (there is also a Github repo somewhere)

Start by reading “Do automated program repair techniques repair hard and important bugs? EMSE18” and locating the related GitHub repository referenced in the issue. No project files, tests, or entry points are named, so the scope must first be defined around the available Defects4J patch data and the intended research question; done means a documented, reproducible analysis plan with clear measures for difficulty, importance, and repair correctness.

Written by the indexing model from the issue text.