*SUPPORT*
IN: blicket tufa zup OUT: GREEN PURPLE
IN: gazzer kiki zup OUT: PINK GREEN PINK
IN: dax fep gazzer OUT: RED PINK
IN: gazzer OUT: PINK
IN: zup OUT: GREEN
IN: zup tufa zup OUT: GREEN GREEN
IN: blicket kiki zup OUT: PURPLE GREEN PURPLE
IN: gazzer tufa gazzer OUT: PINK PINK
IN: dax kiki gazzer OUT: RED PINK RED
IN: gazzer fep zup OUT: PINK GREEN
IN: zup blicket dax tufa zup OUT: GREEN PURPLE GREEN RED
IN: zup dax zup OUT: GREEN RED GREEN
IN: blicket OUT: PURPLE
IN: blicket tufa gazzer OUT: PINK PURPLE

*QUERY*
IN: zup kiki dax OUT: GREEN RED GREEN
IN: dax fep zup OUT: RED GREEN
IN: dax fep blicket OUT: RED PURPLE
IN: blicket kiki dax OUT: PURPLE RED PURPLE
IN: dax gazzer gazzer tufa dax OUT: RED PINK RED PINK
IN: dax tufa zup OUT: GREEN RED
IN: dax OUT: RED
IN: blicket fep zup OUT: PURPLE GREEN
IN: gazzer fep dax OUT: PINK RED
IN: zup gazzer OUT: GREEN PINK

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