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

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

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