Frames for the actual Propbank "unification" release
Changes since the pre-release (3.1-beta-1):
- QC improvements (stricter DTD and other QC scripts) led to many minor frame file tweaks, mostly for roles and examples that did not have valid arguments.
- aliases for light verbs added, with "pos" field of "l", for all common light verbs in English that had a clean mapping to existing PB rolesets.
Changes since 2.1.5: