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

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

*GRAMMAR*
dax -> GREEN 
 kiki -> YELLOW 
 wif -> RED 
 tufa -> PURPLE 
 x1 zup x2 -> [x1] [x1] [x2] [x2] 
 u1 blicket x1 -> [x1] [u1] 
 u1 gazzer -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 