begin{tabular}{ *{13}{c}}
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&$mathds 1$&&$G_text L^H$&&$mathcal U^{6times 6}$&&$left(mathcal U^{6times 6}right)^dagger$&&$left(G_text L^Hright)^dagger$&&$mathds 1$\
$e_text L$ &$longrightarrow$ & $e_text L$ & $longrightarrow$ & $nu_text R$ & $longrightarrow$ & $u_text R +u_text L^C$  & $longrightarrow$ & $nu_text R+cancel{nu_text L^C}$ & $longrightarrow$ & $e_text L$ & $longrightarrow$ & $e_text L$\
ma.&&fla.&&fla.&&mass&&flavour&&fla.&&mass\
es.&&es.&&es.&&eigens.&&eigens.&&es.&&eigens.
end{tabular}