*SUPPORT*
IN: tufa OUT: GREEN
IN: zup OUT: PURPLE
IN: zup tufa kiki OUT: PURPLE GREEN GREEN
IN: zup tufa kiki blicket OUT: PURPLE GREEN GREEN PURPLE GREEN GREEN
IN: zup dax blicket OUT: PURPLE RED PURPLE RED
IN: wif OUT: YELLOW
IN: dax OUT: RED
IN: wif kiki blicket OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax tufa kiki OUT: RED GREEN GREEN
IN: dax tufa blicket OUT: RED GREEN RED GREEN
IN: tufa kiki blicket blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif kiki OUT: YELLOW YELLOW
IN: dax kiki OUT: RED RED
IN: tufa wif tufa tufa OUT: GREEN YELLOW GREEN GREEN

*QUERY*
IN: tufa kiki OUT: GREEN GREEN
IN: zup tufa blicket OUT: PURPLE GREEN PURPLE GREEN
IN: wif wif blicket OUT: YELLOW YELLOW YELLOW YELLOW
IN: wif blicket OUT: YELLOW YELLOW
IN: wif zup kiki OUT: YELLOW PURPLE PURPLE
IN: dax tufa kiki blicket OUT: RED GREEN GREEN RED GREEN GREEN
IN: dax dax kiki OUT: RED RED RED
IN: dax blicket OUT: RED RED
IN: zup kiki OUT: PURPLE PURPLE
IN: tufa zup tufa kiki blicket OUT: GREEN PURPLE GREEN GREEN GREEN PURPLE GREEN GREEN

*GRAMMAR*
zup -> PURPLE 
 tufa -> GREEN 
 dax -> RED 
 wif -> YELLOW 
 u1 kiki -> [u1] [u1] 
 x1 blicket -> [x1] [x1] 
 x1 lug x2 -> [x1] [x1] [x2] [x2] [x2] [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 