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

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

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