This package contains annotation for 23 medical concepts.
It is based on the annotation described in the papers:

1. Global learning of Focused Entailment Graphs. ACL 2010
2.  Learning Entailment Relations by Global Graph Structure Optimization. CL 38(1)

Each medical concept is taken from the UMLS metathesaurus (http://www.nlm.nih.gov/research/umls/)
These are the concepts (UMLS CUI and natural-langauge description):

C0001962	alcohol
C0004096	asthma
C0005558	biopsy
C0006104	brain
C0006826	cancer
C0007670	CDC
C0010200	cough
C0011991	diarrhea
C0018681	headache
C0019682	HIV
C0021344	HPV
C0024109	lungs
C0027497	nausea
C0036111	salmonella
C0036572	seizure
C0041714	FDA
C0041731	OSHA
C0230028	mouth
C0392920	chemotherapy
C0439994	smoking
C0817096	chest
C1306645	xray
C1995013	muscle

For each CUI, we have one or two gold standard annotations for its entailment graph. For example, for the CUI C0001962, we have the two gold standard files:
a. C0001962_gold1.txt
b. C0001962_gold2.txt

The format of each file is the following:
---------------
<CUI in lower case>
Nodes:
<Description of node 1>
<Description of node 2>
<Description of node 3>
.
.
.
Edges:
<Description of Edge 1>
<Description of Edge 2>
<Description of Edge 3>
.
.
.
----------------

A node is described by four tab-delimited fields:
a. node identification number (ID)
b. node description - according to the DIRT-style description of dependency paths (Lin and Pantel, 2001). E-mail me if you are unfamiliar with it, but is is quite intuitive. Each node is a dependency path between two nouns in a dependency tree. The string describes the path - the edges and the label on the edges, and also the nodes with their part-of-speech.
	Some examples from the "alcohol" graph (C0001962)
	1. "n<obj<v:drink:v>subj>n": X drink alcohol ("X" is the argument on the right-hand-side and is the subject and "alcohol" is the argument on th left-hand-side and is the object)
	2. "n<subj<v:increase:v>obj>n": Alcohol increase X
	3. "n<subj<v:interfere:v>p:with:p>n": Alcohol interfere with X
c. ignore the number in this field
d. ignore the number in this field

An edge such as "u->v" denotes and edge from node ID "u" to node ID "v".
