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

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

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