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

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

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