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

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

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