2-Sided PLL Recognition Help

Hello guys,
I just decided to learn full 2-sided PLL recognition, and here are the cases I know from each angle:
Ua
Ub
H
Z
Y
E
V
Na
Nb
Ja
Jb
But then there are the G, R and A perms of which the Ga and Gb + the R and A perms look SO SIMILAR from each angle, so what advice would you people have for this recognition problem?
 
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