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

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

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