Table 2.

Node and relationship labels in the integrated biomedical graph model (shown in Figure 1).

Number	From node label	Relationship labels	To node label
1	Patient	HAS_CONDITION	Condition
2	Patient	HAS_SYMPTOM	Symptom
3	Patient	HAS_PROCEDURE	Procedure
4	Patient	HAS_MEDICATION	Medication
5	Patient	HAS_TREATMENT	Treatment
6	Patient	HAS_OBSERVATION	Observation
7	Patient	HAS_RISKFACTOR	RiskFactor
8	Patient	HAS_HISTORY	History
9	Patient	HAS_LABTEST	Labtest
10	Patient	INSTANCE_OF	AbstractPatient
11	AbstractPatient	MAY_HAVE_TARGET	TargetConcept
12	TargetConcept	HAS_RELCAT	RelCat
13	RelCat	HAS_RELA	Concept