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

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

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