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

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

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