[NTG-context] Spaces in commands

Hi there, how to define commands, which are simply short-cuts for some terms? My attempt produces typographical mistakes: %%%%%%%%%%%%%%%%%% \def\testcmd{% Testcommand% } \def\testcmdtwo{% Testcommandtwo } \starttext This is a \testcmd. Everything ok. This \testcmd has no space after, but it should have. This \testcmdtwo has a space after. Everything ok. But this \testcmdtwo, produces one extra spaces after the comma. \stoptext %%%%%%%%%%%%%%%%%% Thank you. Huseyin