*SUPPORT*
IN: fep zup OUT: BLUE BLUE
IN: kiki tufa blicket OUT: RED GREEN
IN: fep fep zup OUT: BLUE BLUE BLUE
IN: fep tufa gazzer lug OUT: YELLOW BLUE YELLOW BLUE
IN: fep OUT: BLUE
IN: blicket blicket tufa fep OUT: RED BLUE RED
IN: kiki blicket zup lug OUT: GREEN RED RED GREEN RED RED
IN: blicket blicket zup OUT: RED RED RED
IN: gazzer OUT: YELLOW
IN: blicket tufa fep OUT: BLUE RED
IN: blicket fep zup OUT: RED BLUE BLUE
IN: blicket zup lug OUT: RED RED RED RED
IN: blicket OUT: RED
IN: gazzer tufa gazzer OUT: YELLOW YELLOW

*QUERY*
IN: kiki tufa gazzer OUT: YELLOW GREEN
IN: gazzer zup OUT: YELLOW YELLOW
IN: kiki zup OUT: GREEN GREEN
IN: blicket kiki tufa kiki OUT: RED GREEN GREEN
IN: blicket tufa kiki lug OUT: GREEN RED GREEN RED
IN: gazzer tufa kiki OUT: GREEN YELLOW
IN: blicket tufa kiki OUT: GREEN RED
IN: blicket zup OUT: RED RED
IN: gazzer tufa fep lug OUT: BLUE YELLOW BLUE YELLOW
IN: fep zup lug OUT: BLUE BLUE BLUE BLUE

*GRAMMAR*
blicket -> RED 
 kiki -> GREEN 
 gazzer -> YELLOW 
 fep -> BLUE 
 u1 tufa u2 -> [u2] [u1] 
 x1 lug -> [x1] [x1] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 