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

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

*GRAMMAR*
blicket -> GREEN 
 wif -> PURPLE 
 dax -> BLUE 
 fep -> RED 
 u1 zup u2 -> [u2] [u1] 
 u1 kiki -> [u1] [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 