-- span overlap roles and entities now based on bestMatch and only content words
-- major revision to remove duplicate triples that were generated. Build in checks for duplicates at various places.
-- special status of document time removed. doc time is one of the time points. Adapted the time relation for loop. No longer based on the SRL layer but takes any time object and event object and checks the sentence boundary. Ready to remove the AM-TMP from the SRL if the timex takes over.