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

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

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