%\newcommand{\hasparents}{\underaccent{1}{>}}
%\newcommand{\hasparents}{{%
% \declareslashed{}{_{_1}}{0}{-0.8}{>}\slashed{>}}}
+\newcommand{\hasparent}{>_{\mkern-7.0mu _{1}}}
+\newcommand{\isparent}{<_{\mkern-18.0mu _{1}\mkern+9.0mu}}
+
\newcommand{\hasparents}{>_{\mkern-7.0mu _{1:}}}
\newcommand{\areparents}{<_{\mkern-14.0mu _{1:}\mkern+5.0mu}}