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

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

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