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Queries to be applied to

Gloss
telectronic health records
that including
Gloss
tSNOMED CT expressions
GlosTermExpression
may need to represent predicates that test
Gloss
tpostcoordinated expressions
. The requirements for representing
Gloss
Spacetrue
tpostcoordinated expression
Gloss
tquery predicates
are closely related to the requirements for representing
Gloss
tconstraints
on
Gloss
texpressions
. While a
Gloss
tconstraint
specifies whether a particular
Gloss
texpression
is permitted in a particular situation, an
Gloss
texpression
predicate specifies the range of candidate
Gloss
texpressions
that match the
Specref
RefTypefield
tquery
.