Function sub

sub(x: string, y: string): string
Generates a SPARQL subtraction (-) of two numeric expressions.

Parenthesises the operands so the difference binds as a unit regardless of the surrounding operator precedence.
Parameters
- x: string
  The left operand expression
- y: string
  The right operand expression
Returns string
The parenthesised (… - …) difference

See
SPARQL 1.1 Operator Mapping
- Defined in builder.ts:1091