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

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

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