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

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

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