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

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

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