*SUPPORT*
IN: zup fep wif OUT: GREEN RED GREEN RED GREEN RED
IN: zup OUT: GREEN
IN: dax gazzer OUT: YELLOW YELLOW
IN: fep gazzer OUT: RED RED
IN: fep dax OUT: RED YELLOW
IN: zup fep gazzer gazzer OUT: GREEN RED GREEN RED GREEN RED GREEN RED
IN: kiki gazzer OUT: PURPLE PURPLE
IN: dax fep wif OUT: YELLOW RED YELLOW RED YELLOW RED
IN: kiki fep OUT: PURPLE RED
IN: kiki zup wif OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: kiki gazzer wif OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: kiki OUT: PURPLE
IN: fep gazzer lug kiki fep kiki lug dax OUT: RED RED PURPLE RED PURPLE YELLOW
IN: zup gazzer gazzer OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: fep gazzer wif OUT: RED RED RED RED RED RED
IN: kiki fep wif OUT: PURPLE RED PURPLE RED PURPLE RED
IN: zup gazzer OUT: GREEN GREEN
IN: zup dax dax gazzer OUT: GREEN YELLOW YELLOW GREEN YELLOW YELLOW
IN: kiki wif gazzer OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: dax OUT: YELLOW
IN: zup fep OUT: GREEN RED
IN: fep OUT: RED
IN: dax fep gazzer gazzer OUT: YELLOW RED YELLOW RED YELLOW RED YELLOW RED
IN: zup zup OUT: GREEN GREEN

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