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

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

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