*SUPPORT*
IN: wif kiki dax OUT: BLUE PURPLE GREEN
IN: wif lug zup OUT: YELLOW BLUE BLUE BLUE YELLOW
IN: kiki OUT: PURPLE
IN: wif OUT: BLUE
IN: kiki fep blicket zup OUT: PURPLE PURPLE YELLOW
IN: dax lug dax OUT: GREEN GREEN GREEN GREEN GREEN
IN: wif lug wif OUT: BLUE BLUE BLUE BLUE BLUE
IN: kiki fep OUT: PURPLE PURPLE
IN: dax lug zup OUT: YELLOW GREEN GREEN GREEN YELLOW
IN: wif fep blicket dax OUT: BLUE BLUE GREEN
IN: kiki fep blicket kiki OUT: PURPLE PURPLE PURPLE
IN: zup lug zup OUT: YELLOW YELLOW YELLOW YELLOW YELLOW
IN: zup OUT: YELLOW
IN: zup lug wif blicket dax blicket zup OUT: BLUE YELLOW YELLOW YELLOW BLUE GREEN YELLOW

*QUERY*
IN: dax lug zup blicket kiki OUT: YELLOW GREEN GREEN GREEN YELLOW PURPLE
IN: dax dax lug dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: zup dax fep OUT: YELLOW GREEN GREEN
IN: zup zup wif fep blicket wif OUT: YELLOW YELLOW BLUE BLUE BLUE
IN: zup dax dax lug wif OUT: YELLOW GREEN BLUE GREEN GREEN GREEN BLUE
IN: wif blicket zup OUT: BLUE YELLOW
IN: wif fep OUT: BLUE BLUE
IN: dax OUT: GREEN
IN: dax fep OUT: GREEN GREEN
IN: kiki kiki OUT: PURPLE PURPLE

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