The following should have Abbr=Yes to indicate initialisms, as is done in the GUM treebank:
ERROR: Sentence GUM_reddit_conspiracy-57 token 1 -- NNP/Abbr=Yes lemma 'xkcd' does not match uppercase-form applied to form 'XKCD', expected 'XKCD'
ERROR: Sentence GUM_reddit_pandas-15 token 2 -- RB lemma 'IIRC' does not match lowercase-form applied to form 'IIRC', expected 'iirc'
ERROR: Sentence GUM_reddit_escape-11 token 2 -- RB lemma 'IRL' does not match lowercase-form applied to form 'irl', expected 'irl'
ERROR: Sentence GUM_reddit_bobby-14 token 1 -- RB lemma 'BTW' does not match lowercase-form applied to form 'BTW', expected 'btw'
ERROR: Sentence GUM_reddit_ring-9 token 8 -- RB lemma 'IMO' does not match lowercase-form applied to form 'IMO', expected 'imo'
ERROR: Sentence GUM_reddit_polygraph-62 token 19 -- VB lemma 'PM' does not match lowercase-form applied to form 'PM', expected 'pm'
ERROR: Sentence GUM_reddit_social-54 token 28 -- VBP lemma 'MIA' does not match lowercase-form applied to form 'MIA', expected 'mia'
ERROR: Sentence GUM_reddit_steak-1 token 1 -- VBP lemma 'TIFU' does not match lowercase-form applied to form 'TIFU', expected 'tifu'
ERROR: Sentence GUM_reddit_pandas-21 token 7 -- NN lemma 'OP' does not match lowercase-form applied to form 'OP', expected 'op'
ERROR: Sentence GUM_reddit_pandas-29 token 4 -- NN lemma 'AI' does not match lowercase-form applied to form 'Ai', expected 'ai'
ERROR: Sentence GUM_reddit_bobby-10 token 31 -- NN lemma 'WHUT' does not match lowercase-form applied to form 'WHUT', expected 'whut'
ERROR: Sentence GUM_reddit_bobby-15 token 11 -- NN lemma 'P.A.' does not match lowercase-form applied to form 'P.A.', expected 'p.a.'
ERROR: Sentence GUM_reddit_bobby-27 token 11 -- NN lemma 'TV' does not match lowercase-form applied to form 'TV', expected 'tv'
ERROR: Sentence GUM_reddit_bobby-42 token 1 -- NN lemma 'PS' does not match lowercase-form applied to form 'PS', expected 'ps'
ERROR: Sentence GUM_reddit_bobby-42 token 6 -- NN lemma 'OP' does not match lowercase-form applied to form 'OP', expected 'op'
ERROR: Sentence GUM_reddit_conspiracy-31 token 10 -- NN lemma 'IP' does not match lowercase-form applied to form 'IP', expected 'ip'
ERROR: Sentence GUM_reddit_conspiracy-37 token 7 -- NN lemma 'TV' does not match lowercase-form applied to form 'TV', expected 'tv'
ERROR: Sentence GUM_reddit_conspiracy-37 token 17 -- NN lemma 'TV' does not match lowercase-form applied to form 'TV', expected 'tv'
ERROR: Sentence GUM_reddit_gender-14 token 21 -- NN lemma 'PB&J' does not match lowercase-form applied to form 'PB&J', expected 'pb&j'
ERROR: Sentence GUM_reddit_steak-22 token 6 -- NN lemma 'FU' does not match lowercase-form applied to form 'FU', expected 'fu'
ERROR: Sentence GUM_reddit_stroke-15 token 26 -- NN lemma 'ICP' does not match lowercase-form applied to form 'ICP', expected 'icp'
ERROR: Sentence GUM_reddit_stroke-34 token 30 -- NN lemma 'PT' does not match lowercase-form applied to form 'PT', expected 'pt'
ERROR: Sentence GUM_reddit_superman-3 token 4 -- NN lemma 'UE' does not match lowercase-form applied to form 'UE', expected 'ue'
ERROR: Sentence GUM_reddit_superman-7 token 8 -- NN lemma 'UE' does not match lowercase-form applied to form 'UE', expected 'ue'
ERROR: Sentence GUM_reddit_superman-11 token 20 -- NN lemma 'GA' does not match lowercase-form applied to form 'GA', expected 'ga'
ERROR: Sentence GUM_reddit_callout-43 token 2 -- NNP lemma 'xkcd' does not match capitalized-form applied to form 'xkcd', expected 'Xkcd'
ERROR: Sentence GUM_reddit_card-48 token 12 -- NNP lemma 'PS3' does not match capitalized-form applied to form 'ps3', expected 'Ps3'
ERROR: Sentence GUM_reddit_space-2 token 15 -- NNP lemma 'NASA' does not match capitalized-form applied to form 'nasa', expected 'Nasa'
ERROR: Sentence GUM_reddit_space-7 token 8 -- NNP lemma 'ISS' does not match capitalized-form applied to form 'iss', expected 'Iss'
ERROR: Sentence GUM_reddit_space-10 token 12 -- NNP lemma 'NASA' does not match capitalized-form applied to form 'nasa', expected 'Nasa'
ERROR: Sentence GUM_reddit_space-12 token 6 -- NNP lemma 'ISS' does not match capitalized-form applied to form 'iss', expected 'Iss'
ERROR: Sentence GUM_reddit_space-12 token 12 -- NNP lemma 'NASA' does not match capitalized-form applied to form 'nasa', expected 'Nasa'
ERROR: Sentence GUM_reddit_space-15 token 19 -- NNP lemma 'ISS' does not match capitalized-form applied to form 'iss', expected 'Iss'
ERROR: Sentence GUM_reddit_space-17 token 10 -- NNP lemma 'NASA' does not match capitalized-form applied to form 'nasa', expected 'Nasa'
ERROR: Sentence GUM_reddit_space-24 token 16 -- NNP lemma 'NASA' does not match capitalized-form applied to form 'nasa', expected 'Nasa'
The following should have
Abbr=Yes
to indicate initialisms, as is done in the GUM treebank: