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

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

*GRAMMAR*
zup -> RED 
 dax -> BLUE 
 gazzer -> GREEN 
 blicket -> PURPLE 
 u1 tufa -> [u1] [u1] 
 u1 fep u2 -> [u2] [u1] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 