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

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

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