Remove "has" from properties

[joergwa]

The auxiliary verb "has" is actually not necessary.

[joergwa]

'has characteristic' -> characteristic 'has component' -> component 'has next process' -> next process 'has participant' -> participant 'has previous process' -> previous process 'has process' -> process 'has resource' -> resource 'has state' -> state 'has subordinate process' -> subordinate process 'has superordinate process' -> superordinate process 'has unit' -> unit

'has value" -> value