*SUPPORT*
IN: wif tufa dax OUT: PINK PINK RED RED RED
IN: blicket fep OUT: YELLOW YELLOW YELLOW
IN: blicket tufa gazzer OUT: GREEN GREEN YELLOW YELLOW YELLOW
IN: gazzer kiki OUT: GREEN GREEN GREEN
IN: dax OUT: PINK
IN: dax blicket tufa gazzer OUT: PINK GREEN GREEN YELLOW YELLOW YELLOW
IN: dax tufa wif OUT: RED RED PINK PINK PINK
IN: wif kiki OUT: RED RED RED
IN: dax tufa blicket OUT: YELLOW YELLOW PINK PINK PINK
IN: blicket dax gazzer OUT: YELLOW PINK GREEN
IN: gazzer OUT: GREEN
IN: dax dax kiki OUT: PINK PINK PINK PINK
IN: gazzer tufa wif OUT: RED RED GREEN GREEN GREEN
IN: wif OUT: RED

*QUERY*
IN: wif wif OUT: RED RED
IN: wif tufa blicket OUT: YELLOW YELLOW RED RED RED
IN: blicket wif dax kiki OUT: YELLOW RED PINK PINK PINK
IN: blicket kiki OUT: YELLOW YELLOW YELLOW
IN: blicket dax OUT: YELLOW PINK
IN: dax wif OUT: PINK RED
IN: dax kiki OUT: PINK PINK PINK
IN: gazzer fep OUT: GREEN GREEN GREEN
IN: blicket OUT: YELLOW
IN: blicket blicket kiki OUT: YELLOW YELLOW YELLOW YELLOW

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