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

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

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