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

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

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