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

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

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