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

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

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