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

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

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