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

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

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