Given a vertex
#<My::Names rid="#237:3" in=nil out=nil name="Hebert" age=7 bez=nil>,
To remove it, delete vertex #237:0 is one proper command.
However, if "delete edge #237:0 is used, this error is returned
Execution Failure – Code: 500 – Internal Server Error
Description: Current element is not a vertex: #237:0[name=Hubert2,age=65]