Get the triggering item (name)

if i write a rule where i did more than one with an OR in when clause, how to get the item which triggers the rule?

rule "abc"
   itemA receive command OR
   itemB receive command OR
   itemC receive command
   // who triggered this rule ...

You can’t. But here is a workaround technique using Groups

hmm, ok, that’s definitly a con for OH …