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

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

*GRAMMAR*
kiki -> RED 
 gazzer -> GREEN 
 fep -> YELLOW 
 zup -> PURPLE 
 x1 tufa u1 -> [x1] [u1] 
 u1 dax u2 -> [u2] [u1] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 