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In a subsumption test there are two expressions , one of which is being tested for subsumption by the other. To distinguish these expressions the following definitions are used:

Candidate expression - An expression that is being tested to see if it is subsumed by another expression .

Predicate expression - An expression that is being tested to see if it subsumes another expression .

Table 52. Example Predicate and Candidate Expressions

 

 

Predicate

Candidate

Test result

|Fracture of femur|

|Fracture of neck of femur|

True

 

|Fracture of bone|

False

|Fracture of bone|

|Fracture of femur|

True

 

|Fracture of neck of femur|

True

|asthma| (in patient)

|FH: Asthma|

False

 

|Severe asthma| (in patient)

True

|Family history of respiratory disease|

|FH: Asthma|

True


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