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

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

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