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

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

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