FInd a nice notation for reverse triple

[Tpt]

The current notation used in the UI is ugly.

[Ezibenroc]

👍

[yhamoudi]

Why this issue is opened here and not into the UI repository ?

[Tpt]

Because the notation should be defined in the data model specification and
supported by the notation parser.

[Ezibenroc]

I think we should display the predicate next to the inverse predicate, since they are highly related.