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

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

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