*SUPPORT*
IN: wif zup lug dax fep OUT: GREEN BLUE RED GREEN BLUE RED
IN: wif lug dax fep fep OUT: BLUE GREEN BLUE GREEN BLUE GREEN BLUE GREEN
IN: wif blicket kiki OUT: PINK GREEN
IN: wif lug dax OUT: BLUE GREEN
IN: zup lug kiki blicket wif OUT: GREEN PINK RED
IN: kiki OUT: PINK
IN: zup kiki lug dax blicket wif fep OUT: GREEN RED BLUE PINK GREEN RED BLUE PINK
IN: kiki wif fep OUT: PINK GREEN PINK GREEN
IN: wif kiki fep OUT: GREEN PINK GREEN PINK
IN: zup lug zup OUT: RED RED
IN: zup lug dax OUT: BLUE RED
IN: wif OUT: GREEN
IN: wif dax OUT: GREEN BLUE
IN: kiki lug dax blicket kiki fep OUT: PINK BLUE PINK PINK BLUE PINK

*QUERY*
IN: wif lug kiki blicket dax OUT: BLUE PINK GREEN
IN: zup lug kiki OUT: PINK RED
IN: kiki dax lug zup OUT: PINK RED BLUE
IN: zup lug wif fep fep OUT: GREEN RED GREEN RED GREEN RED GREEN RED
IN: zup OUT: RED
IN: kiki wif dax fep OUT: PINK GREEN BLUE PINK GREEN BLUE
IN: wif fep OUT: GREEN GREEN
IN: wif lug zup OUT: RED GREEN
IN: kiki blicket kiki fep OUT: PINK PINK PINK PINK
IN: zup lug wif fep OUT: GREEN RED GREEN RED

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