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

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

*GRAMMAR*
wif -> YELLOW 
 tufa -> RED 
 fep -> BLUE 
 zup -> PINK 
 u1 kiki u2 -> [u1] [u2] [u2] [u2] 
 x1 gazzer x2 -> [x2] [x2] [x1] 
 u1 lug x1 -> [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 