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

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

*GRAMMAR*
kiki -> PINK 
 zup -> GREEN 
 fep -> PURPLE 
 blicket -> RED 
 x1 dax x2 -> [x2] [x1] [x1] 
 x1 lug u1 -> [u1] [x1] 
 x1 wif u1 -> [x1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 