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

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

*GRAMMAR*
blicket -> RED 
 kiki -> YELLOW 
 tufa -> GREEN 
 dax -> PURPLE 
 x1 wif x2 -> [x1] [x2] 
 u1 zup u2 -> [u1] [u2] 
 u1 gazzer -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 