| Relation Data MetaClass || Double || e.g. a measurement value
|}
{| class="wikitable" width=50%
|-
! width=30% | Target Type Left!! width=30% | Target Type Right !! width=30% | Relation Data Template !! width=30% | Relation Data MetaClass !!
|-
| Target Type Left || Double || e.g. a measurement value
|-
| Target Type Right || Double || e.g. a measurement value
|-
| Relation Data Template || Double || e.g. a measurement value
|-
| Relation Data MetaClass || Double || e.g. a measurement value
|}
[[Category:System Relations]]