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

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

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