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

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

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