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

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

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