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

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

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