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

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

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