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

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

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