I'm trying to create a diagram to illustrate set relationships in Microsoft Word. I'll admit that I can't remember the actual name of this type of diagram and I've been having trouble finding out what it's called (in fact, if someone could remind me of its name I'd appreciate it).
As an illustration, the Wikipedia article on bijections has a diagram that looks like what I'm trying to do:
Does Microsoft Word have a tool for this? My first thoughts were to use SmartArt or Equations Editor, but if it's possible to do that in those it's not obvious to me how. Or am I going to have to use the Drawing Canvass for this? (I'd rather not have to do that though because it seems like the diagram would be a lot more professional-looking if there was a built-in tool to do that specifically).
I unfortunately do not have Visio by the way.