*SUPPORT*
IN: lug OUT: RED
IN: lug zup lug fep OUT: RED RED YELLOW
IN: gazzer OUT: PINK
IN: fep zup fep kiki OUT: YELLOW YELLOW YELLOW
IN: lug zup wif tufa lug kiki OUT: RED RED RED BLUE RED RED RED RED
IN: wif kiki OUT: BLUE BLUE
IN: lug zup gazzer OUT: RED PINK
IN: fep zup wif kiki OUT: YELLOW BLUE BLUE
IN: gazzer kiki OUT: PINK PINK
IN: fep tufa lug fep OUT: RED YELLOW YELLOW RED YELLOW RED YELLOW
IN: fep tufa gazzer kiki OUT: PINK PINK YELLOW PINK PINK PINK PINK
IN: wif lug kiki OUT: BLUE RED RED
IN: lug kiki OUT: RED RED
IN: fep kiki OUT: YELLOW YELLOW

*QUERY*
IN: fep wif zup lug OUT: YELLOW BLUE RED
IN: wif zup lug OUT: BLUE RED
IN: fep gazzer fep OUT: YELLOW PINK YELLOW
IN: fep OUT: YELLOW
IN: wif zup wif OUT: BLUE BLUE
IN: lug wif OUT: RED BLUE
IN: gazzer zup fep gazzer kiki OUT: PINK YELLOW PINK PINK
IN: fep zup fep zup fep kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: wif wif wif kiki OUT: BLUE BLUE BLUE BLUE
IN: wif wif kiki OUT: BLUE BLUE BLUE

*GRAMMAR*
lug -> RED 
 gazzer -> PINK 
 fep -> YELLOW 
 wif -> BLUE 
 u1 kiki -> [u1] [u1] 
 x1 tufa x2 -> [x2] [x1] [x2] [x2] 
 u1 zup x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 