*SUPPORT*
IN: wif dax gazzer OUT: PURPLE GREEN
IN: gazzer OUT: PURPLE
IN: blicket OUT: RED
IN: kiki OUT: BLUE
IN: kiki dax gazzer OUT: PURPLE BLUE
IN: gazzer fep wif OUT: GREEN PURPLE
IN: gazzer dax blicket OUT: RED PURPLE
IN: gazzer fep blicket OUT: RED PURPLE
IN: blicket kiki dax blicket zup OUT: RED RED BLUE RED RED BLUE
IN: kiki dax gazzer zup zup OUT: PURPLE BLUE PURPLE BLUE PURPLE BLUE PURPLE BLUE
IN: wif dax gazzer zup zup OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: wif zup OUT: GREEN GREEN
IN: gazzer blicket fep kiki OUT: BLUE PURPLE RED
IN: gazzer dax kiki fep blicket OUT: RED BLUE PURPLE

*QUERY*
IN: wif dax kiki OUT: BLUE GREEN
IN: wif fep gazzer fep gazzer OUT: PURPLE PURPLE GREEN
IN: gazzer zup OUT: PURPLE PURPLE
IN: wif OUT: GREEN
IN: kiki dax kiki fep blicket OUT: RED BLUE BLUE
IN: wif dax wif OUT: GREEN GREEN
IN: wif dax kiki zup zup OUT: BLUE GREEN BLUE GREEN BLUE GREEN BLUE GREEN
IN: gazzer dax gazzer OUT: PURPLE PURPLE
IN: blicket fep kiki OUT: BLUE RED
IN: gazzer blicket dax blicket zup fep blicket OUT: RED PURPLE RED RED PURPLE RED RED

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