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

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

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