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

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

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