 Complete the following phrase:  Acting hetman performed duties of the hetman when the later was absent during military campaigns, foreign travels, or his incapacitation. As well as a temporary replacement if the hetmans office became vacant, because of death, abdication, or deposition. Sometimes the appointed hetman acted as a full-pledged hetman as Filon Dzhalaliy when he was elected in 1651 and 1655 as well as Ivan Bohun when he was elected after the 