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

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

*GRAMMAR*
zup -> YELLOW 
 lug -> GREEN 
 dax -> RED 
 wif -> BLUE 
 u1 gazzer u2 -> [u2] [u1] [u2] 
 x1 tufa x2 -> [x1] [x2] 
 x1 kiki -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 