"spanning" - key terms from Wikipedia

distributed minimum spanning	tree
finite spanning	set
minimal spanning	switch
minimum spanning	tree
minimum spanning	tree algorithm
minimum spanning	tree problem
multiple spanning	tree protocol
observations spanning
proving that a finite spanning
rapid spanning	tree protocol
spanning
spanning	a river
spanning	a total
spanning	set
spanning	set is a basis
spanning	subgraph
spanning	tray
spanning	tree
spanning	tree algorithm
spanning	tree information
spanning	tree protocol
spanning	tree protocol at work