*SUPPORT*
IN: dax OUT: RED
IN: lug zup OUT: BLUE BLUE
IN: wif fep lug gazzer fep dax OUT: RED BLUE BLUE GREEN
IN: kiki zup OUT: PINK PINK
IN: lug zup fep lug OUT: BLUE BLUE BLUE
IN: dax kiki OUT: RED PINK
IN: lug OUT: BLUE
IN: lug kiki dax gazzer OUT: BLUE PINK RED RED
IN: wif gazzer OUT: GREEN GREEN
IN: wif fep lug OUT: BLUE GREEN
IN: lug wif gazzer OUT: BLUE GREEN GREEN
IN: wif zup OUT: GREEN GREEN
IN: kiki gazzer OUT: PINK PINK
IN: dax gazzer OUT: RED RED

*QUERY*
IN: wif kiki OUT: GREEN PINK
IN: dax zup fep kiki gazzer OUT: PINK PINK RED RED
IN: dax zup fep wif wif fep kiki gazzer OUT: PINK PINK GREEN GREEN RED RED
IN: lug fep lug OUT: BLUE BLUE
IN: dax kiki zup fep dax wif gazzer OUT: RED GREEN GREEN RED PINK PINK
IN: kiki lug fep wif gazzer OUT: GREEN GREEN PINK BLUE
IN: kiki zup fep wif lug zup OUT: GREEN BLUE BLUE PINK PINK
IN: lug gazzer OUT: BLUE BLUE
IN: kiki wif wif zup OUT: PINK GREEN GREEN GREEN
IN: wif dax lug gazzer fep lug lug OUT: BLUE BLUE GREEN RED BLUE BLUE

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