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

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

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