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

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

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