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

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

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