Let $G_1=(V,T,S,P)$ where

$V=\{0,1,S\}$

$T=\{0,1\}$

start symbol $S$

$P=\{S0S0,S1S1,S0,S1,S\}$

$($a$)$

$($b$)0$

$($c$)1$

$($d$)00$

$($e$)01$

$($f$)10$

We are evaluating the following words:

$($g$)11$

$($h$)000$