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

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

*GRAMMAR*
lug -> GREEN 
 fep -> RED 
 blicket -> YELLOW 
 dax -> BLUE 
 x1 wif x2 -> [x1] [x2] [x1] 
 u1 zup x1 -> [x1] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 