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"
when
   itemA receive command OR
   itemB receive command OR
   itemC receive command
then
   // who triggered this rule ...
wend

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

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