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

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

*GRAMMAR*
dax -> RED 
 wif -> BLUE 
 fep -> PURPLE 
 lug -> YELLOW 
 x1 gazzer x2 -> [x2] [x1] [x1] [x1] 
 x1 tufa x2 -> [x1] [x2] 
 x1 zup x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 