Use clustered proper noun phrases as alternative to NER

[elliottash]

See here, "The President" is identified as a proper noun phrase:
https://explosion.ai/demos/displacy?text=The%20President%20voted%20for%20schools.&model=en_core_web_sm&cpu=1&cph=1

As an alternative to NER entity tagging, run two parallel noun phrase clusterings:

one set of clusters for proper nouns, and another set of clusters for common nouns (based on POS tag).

this will work best after co-reference resolution.