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

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

*GRAMMAR*
kiki -> RED 
 dax -> PINK 
 wif -> PURPLE 
 zup -> GREEN 
 x1 tufa x2 -> [x1] [x2] [x2] [x1] [x1] 
 u1 gazzer -> [u1] [u1] 
 u1 fep u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 