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

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

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