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

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

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