*SUPPORT*
IN: zup OUT: GREEN
IN: zup dax wif OUT: RED GREEN RED
IN: lug dax lug OUT: BLUE BLUE BLUE
IN: wif fep OUT: RED RED RED RED RED RED
IN: zup zup dax kiki OUT: GREEN PINK GREEN PINK
IN: wif dax lug OUT: BLUE RED BLUE
IN: zup zup gazzer lug gazzer wif OUT: GREEN GREEN BLUE RED
IN: wif zup gazzer kiki OUT: RED GREEN PINK
IN: zup dax zup OUT: GREEN GREEN GREEN
IN: zup dax lug OUT: BLUE GREEN BLUE
IN: zup gazzer zup OUT: GREEN GREEN
IN: zup zup fep gazzer zup OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: kiki dax zup OUT: GREEN PINK GREEN
IN: wif lug dax wif OUT: RED RED BLUE RED

*QUERY*
IN: kiki lug OUT: PINK BLUE
IN: lug dax zup OUT: GREEN BLUE GREEN
IN: zup fep gazzer zup OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug fep OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: wif OUT: RED
IN: zup fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: kiki fep OUT: PINK PINK PINK PINK PINK PINK
IN: lug dax wif OUT: RED BLUE RED
IN: kiki dax wif OUT: RED PINK RED
IN: lug OUT: BLUE

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