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

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

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