*SUPPORT*
IN: dax fep blicket OUT: BLUE GREEN
IN: dax OUT: BLUE
IN: blicket fep gazzer OUT: GREEN PURPLE
IN: wif fep wif OUT: PINK PINK
IN: blicket wif OUT: GREEN PINK
IN: gazzer fep dax OUT: PURPLE BLUE
IN: dax fep gazzer OUT: BLUE PURPLE
IN: gazzer gazzer fep gazzer kiki OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: dax kiki OUT: BLUE BLUE
IN: wif lug OUT: PINK PINK
IN: gazzer blicket lug kiki OUT: PURPLE GREEN GREEN PURPLE GREEN GREEN
IN: gazzer lug kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax dax gazzer OUT: BLUE BLUE PURPLE
IN: gazzer fep wif OUT: PURPLE PINK

*QUERY*
IN: wif lug kiki OUT: PINK PINK PINK PINK
IN: wif OUT: PINK
IN: blicket blicket lug OUT: GREEN GREEN GREEN
IN: gazzer gazzer kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: gazzer lug OUT: PURPLE PURPLE
IN: blicket fep dax kiki OUT: GREEN BLUE GREEN BLUE
IN: dax lug OUT: BLUE BLUE
IN: blicket OUT: GREEN
IN: gazzer OUT: PURPLE
IN: wif fep blicket OUT: PINK GREEN

*GRAMMAR*
wif -> PINK 
 blicket -> GREEN 
 gazzer -> PURPLE 
 dax -> BLUE 
 u1 fep u2 -> [u1] [u2] 
 x1 kiki -> [x1] [x1] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 