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

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

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