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

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

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