*SUPPORT*
IN: tufa tufa OUT: GREEN GREEN
IN: fep gazzer dax OUT: RED YELLOW
IN: fep gazzer tufa OUT: RED GREEN
IN: fep blicket dax OUT: RED YELLOW
IN: fep fep blicket dax blicket lug OUT: RED RED YELLOW PURPLE
IN: tufa gazzer tufa OUT: GREEN GREEN
IN: lug gazzer dax OUT: PURPLE YELLOW
IN: tufa gazzer dax OUT: GREEN YELLOW
IN: fep lug lug gazzer fep OUT: RED PURPLE PURPLE RED
IN: tufa lug OUT: GREEN PURPLE
IN: dax blicket fep gazzer tufa OUT: YELLOW RED GREEN
IN: lug tufa fep lug blicket tufa OUT: PURPLE GREEN RED PURPLE GREEN
IN: dax OUT: YELLOW
IN: dax fep OUT: YELLOW RED

*QUERY*
IN: fep kiki lug OUT: PURPLE PURPLE RED PURPLE RED
IN: tufa OUT: GREEN
IN: tufa fep OUT: GREEN RED
IN: fep dax blicket fep OUT: RED YELLOW RED
IN: fep OUT: RED
IN: dax gazzer dax OUT: YELLOW YELLOW
IN: fep blicket fep gazzer fep OUT: RED RED RED
IN: tufa blicket lug gazzer dax OUT: GREEN PURPLE YELLOW
IN: dax blicket dax kiki tufa OUT: YELLOW GREEN GREEN YELLOW GREEN YELLOW
IN: lug OUT: PURPLE

*GRAMMAR*
dax -> YELLOW 
 fep -> RED 
 lug -> PURPLE 
 tufa -> GREEN 
 u1 gazzer u2 -> [u1] [u2] 
 u1 blicket x1 -> [u1] [x1] 
 x1 kiki x2 -> [x2] [x2] [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 