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

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

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