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

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

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