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

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

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