*SUPPORT*
IN: dax kiki dax OUT: GREEN GREEN
IN: zup OUT: YELLOW
IN: zup zup OUT: YELLOW YELLOW
IN: dax gazzer gazzer fep dax OUT: GREEN RED GREEN RED GREEN GREEN GREEN
IN: dax dax OUT: GREEN GREEN
IN: zup kiki gazzer OUT: YELLOW RED
IN: dax tufa OUT: GREEN PURPLE
IN: zup zup kiki dax OUT: YELLOW YELLOW GREEN
IN: dax gazzer fep tufa OUT: GREEN PURPLE RED PURPLE PURPLE PURPLE
IN: dax kiki zup OUT: GREEN YELLOW
IN: gazzer kiki tufa OUT: RED PURPLE
IN: gazzer OUT: RED
IN: tufa OUT: PURPLE
IN: dax gazzer OUT: GREEN RED

*QUERY*
IN: gazzer fep dax OUT: GREEN RED GREEN GREEN GREEN
IN: tufa fep dax OUT: GREEN PURPLE GREEN GREEN GREEN
IN: gazzer fep zup OUT: YELLOW RED YELLOW YELLOW YELLOW
IN: dax fep gazzer OUT: RED GREEN RED RED RED
IN: dax wif gazzer kiki gazzer OUT: RED RED GREEN
IN: tufa wif tufa kiki dax OUT: PURPLE GREEN PURPLE
IN: dax gazzer dax kiki tufa OUT: GREEN RED GREEN PURPLE
IN: dax OUT: GREEN
IN: dax fep zup OUT: YELLOW GREEN YELLOW YELLOW YELLOW
IN: zup tufa OUT: YELLOW PURPLE

*GRAMMAR*
zup -> YELLOW 
 dax -> GREEN 
 gazzer -> RED 
 tufa -> PURPLE 
 x1 wif x2 -> [x2] [x1] 
 u1 fep x1 -> [x1] [u1] [x1] [x1] [x1] 
 x1 kiki u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 