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

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

*GRAMMAR*
dax -> GREEN 
 kiki -> BLUE 
 fep -> RED 
 lug -> PINK 
 u1 wif u2 -> [u1] [u2] 
 x1 tufa -> [x1] [x1] 
 x1 zup -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 