Help With Scripting

How do we edit below script to include a third tag battery, for example /PLC/5155-Battery voltage

tag='/PLC/5070-Battery Voltage'
tagPath = tagProv+location+tag

if system.tag.exists(tagPath):
	self.position.display = 1
	return tagPath
else:
	tagPath = tagProv+location+'/PLC/5059-Battery Voltage'
	if system.tag.exists(tagPath):
		self.position.display = 1
		return tagPath
	else:
		self.position.display = 0
		return ''''

Thanks for the help!

tagPath1 = tagProv+location+'/PLC/5070-Battery Voltage'
tagPath2 = tagProv+location+'/PLC/5059-Battery Voltage'
tagPath3 = tagProv+location+'/PLC/5155-Battery voltage'

if system.tag.exists(tagPath1):
	self.position.display = 1
	return tagPath1
elif system.tag.exists(tagPath2):
	self.position.display = 1
	return tagPath2
elif system.tag.exists(tagPath3):
	self.position.display = 1
	return tagPath3
else:
	self.position.display = 0
	return ''''

Thank you for your help