*SUPPORT*
IN: gazzer dax blicket zup OUT: RED YELLOW YELLOW RED YELLOW YELLOW
IN: gazzer tufa gazzer OUT: RED RED RED
IN: dax kiki zup OUT: YELLOW PURPLE YELLOW PURPLE
IN: kiki OUT: PURPLE
IN: dax tufa dax OUT: YELLOW YELLOW YELLOW
IN: dax blicket zup OUT: YELLOW YELLOW YELLOW YELLOW
IN: kiki blicket OUT: PURPLE PURPLE
IN: dax OUT: YELLOW
IN: wif blicket OUT: GREEN GREEN
IN: gazzer blicket OUT: RED RED
IN: wif OUT: GREEN
IN: wif tufa gazzer OUT: GREEN GREEN RED
IN: gazzer zup zup OUT: RED RED RED RED
IN: gazzer tufa dax OUT: RED RED YELLOW

*QUERY*
IN: dax gazzer tufa wif OUT: YELLOW RED RED GREEN
IN: gazzer tufa wif OUT: RED RED GREEN
IN: kiki tufa kiki zup OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: kiki zup zup zup OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: dax blicket OUT: YELLOW YELLOW
IN: dax kiki gazzer zup OUT: YELLOW PURPLE RED YELLOW PURPLE RED
IN: dax tufa kiki OUT: YELLOW YELLOW PURPLE
IN: kiki tufa gazzer OUT: PURPLE PURPLE RED
IN: dax gazzer wif blicket OUT: YELLOW RED GREEN GREEN
IN: wif blicket zup zup OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN

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