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

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

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