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

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

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