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

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

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