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

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

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