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

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

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