@prefix : <#> .
@prefix math: <http://www.w3.org/2000/10/swap/math#> .

{ "1" math:absoluteValue 1 } => {:test1a a :SUCCESS}.
{ 1 math:absoluteValue 1 } => {:test1b a :SUCCESS}.
{ "-1" math:absoluteValue 1 } => {:test1c a :SUCCESS}.
{ -1 math:absoluteValue 1 } => {:test1d a :SUCCESS}.

{ -8.1 math:absoluteValue ?x } => {:test2a :is 8.1}.

{ (1) math:absoluteValue ?x } => {:test2a a :FAILURE}.
