1. Vermont Complex Systems Center, University of Vermont, Burlington, VT 05405, USA.
2. Computational Story Lab, University of Vermont, Burlington, VT 05405, USA.
3. Department of Computer Science, University of Vermont, Burlington, VT 05405, USA.
4. Charles River Analytics, Cambridge, MA 02138, USA.
5. MassMutual Data Science, Boston, MA 02110, USA.