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

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

*GRAMMAR*
wif -> YELLOW 
 gazzer -> GREEN 
 kiki -> BLUE 
 zup -> RED 
 u1 dax u2 -> [u2] [u2] [u1] [u2] [u1] [u2] 
 u1 lug -> [u1] [u1] 
 u1 tufa -> [u1] [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 