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

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

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