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

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

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