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

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

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