How to add edge labels in Graphviz?

Question

I am trying to draw a graph using Graphviz, but I need to add labels on the edges. There does not seem to be any way to that in Graphviz. Are there a way out?

Answer 1

Landed here by googling whether labels could be on arrow's ends, for UML's composition/aggregation. The answer is yes:

"Person" -> "Hand" [headlabel="*", taillabel="1"]