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

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

*GRAMMAR*
fep -> YELLOW 
 zup -> BLUE 
 kiki -> PURPLE 
 lug -> GREEN 
 u1 dax u2 -> [u2] [u1] 
 x1 wif x2 -> [x2] [x1] [x2] 
 x1 blicket u1 -> [u1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 