Emit Predicate (quand émettre le résultat)
ref->to.filter(e=>e IS Item<er.co.VPMInstance>).length==0
Stop Node Condition
ref->to.filter(e=>e IS Item<er.co.VPMInstance>).length==0
Neighbors expression
ref->to.filter(e=>e IS Item<er.co.VPMInstance>).map(e=>e AS Item<er.co.VPMInstance>)
Emit Predicate (quand émettre le résultat)
reference->from.filter(e=>e IS Item<er.co.VPMInstance>).length==0
Neighbors expression
reference->from.filter(e=>e IS Item<er.co.VPMInstance>).map(e=>e AS Item<er.co.VPMInstance>)