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

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

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