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

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

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