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

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

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