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

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

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