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

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

*GRAMMAR*
fep -> BLUE 
 lug -> YELLOW 
 dax -> PURPLE 
 wif -> GREEN 
 u1 zup -> [u1] [u1] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 x1 kiki u1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 