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

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

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