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

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

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