*SUPPORT*
IN: dax tufa blicket OUT: BLUE PURPLE
IN: lug tufa dax OUT: PURPLE YELLOW
IN: wif fep blicket OUT: GREEN GREEN BLUE
IN: lug tufa lug OUT: YELLOW YELLOW
IN: lug dax fep dax OUT: YELLOW PURPLE YELLOW PURPLE PURPLE
IN: lug OUT: YELLOW
IN: wif tufa lug OUT: YELLOW GREEN
IN: wif tufa blicket OUT: BLUE GREEN
IN: blicket fep lug OUT: BLUE BLUE YELLOW
IN: dax blicket OUT: PURPLE BLUE
IN: lug tufa blicket fep lug OUT: BLUE YELLOW BLUE YELLOW YELLOW
IN: wif OUT: GREEN
IN: blicket tufa lug OUT: YELLOW BLUE
IN: blicket dax tufa lug OUT: BLUE YELLOW PURPLE

*QUERY*
IN: wif tufa wif OUT: GREEN GREEN
IN: lug tufa lug kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: blicket OUT: BLUE
IN: dax OUT: PURPLE
IN: dax kiki OUT: PURPLE PURPLE PURPLE
IN: dax tufa wif OUT: GREEN PURPLE
IN: lug kiki OUT: YELLOW YELLOW YELLOW
IN: wif tufa dax OUT: PURPLE GREEN
IN: wif kiki OUT: GREEN GREEN GREEN
IN: lug tufa blicket OUT: BLUE YELLOW

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