

This AMA by Daniel Crowe from Grakn Labs occurred in Slogging's official #amas channel, and has been edited for readability.
define rule siblingship: when {$child1 isa person; $child2 isa person; $parent isa person; (child: $child1, parent:$parent) isa parentship; (child: $child2, parent:$parent) isa parentship; $child1 !-= $child2;} then {(sibling: $child1, sibling: $child2) isa siblingship;};
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