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

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

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