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Table 2 UMLS semantic types and their corresponding abbreviations that can be used for posing questions

From: Biomedical question answering using semantic relations

Abbreviation

Semantic type

Relation count

Instance count

dsyn

Disease or Syndrome

2603234

12591865

aapp

Amino Acid, Peptide, or Protein

4345793

11503829

podg

Patient or Disabled Group

199404

9258258

bpoc

Body Part, Organ, or Organ Component

1392967

8711584

gngm

Gene or Genome

3422406

6946503

topp

Therapeutic or Preventive Procedure

991912

5108457

neop

Neoplastic Process

802419

4650747

cell

Cell

807092

4346530

mamm

Mammal

456140

4230378

phsu

Pharmacologic Substance

1100842

4226225

orch

Organic Chemical

1550322

3485563

bacs

Biologically Active Substance

951043

2922549

fndg

Finding

592051

2906281

patf

Pathologic Function

667378

2828014

popg

Population Group

339502

2419899

aggp

Age Group

179259

2191630

tisu

Tissue

291668

1634166

celc

Cell Component

349980

1606480

humn

Human

94088

1537291

sosy

Sign or Symptom

275794

1400138

diap

Diagnostic Procedure

271705

1385473

orgf

Organism Function

292346

1307166

inpo

Injury or Poisoning

200300

1076107

celf

Cell Function

370243

1004738

mobd

Mental or Behavioral Dysfunction

186453

997544

  1. Also shown is how many times a semantic type appears as an argument in semantic relations and semantic relation instances. Only the most frequent 25 semantic types are shown out of 133.