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

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

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