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

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

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