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

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

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