OntoNotes
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Weischedel, Ralph, et al. OntoNotes Release 5.0 LDC2013T19. Web Download. Philadelphia: Linguistic Data Consortium, 2013.
Derived data provided for non-commercial use under the LDC User Agreement for Non-Members
See: https://catalog.ldc.upenn.edu/license/ldc-non-members-agreement.pdf
