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

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

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