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

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

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