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

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

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