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

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

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