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

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

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