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

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

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