before_revision: The tsunami occoured a couple of hours before there was going to be a tsunami warning system test, that had 29 countries participating.
after_revision: The tsunami occurred a couple of hours before a previously-scheduled test of a tsunami warning system . The test had 29 countries participating.
edit_actions: R
edit_actions: occoured
edit_actions: occurred
edit_actions: fluency
edit_actions: fluency fluency fluency
edit_actions: R
edit_actions: there was going to be a
edit_actions: a previously-scheduled test of a
edit_actions: clarity
edit_actions: clarity clarity clarity
edit_actions: R
edit_actions: test, that
edit_actions: . The test
edit_actions: coherence
edit_actions: coherence coherence clarity