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

*QUERY*
IN: zup dax OUT: BLUE RED
IN: wif zup OUT: GREEN BLUE
IN: wif OUT: GREEN
IN: tufa lug OUT: PURPLE PURPLE PURPLE
IN: zup blicket OUT: BLUE BLUE
IN: tufa OUT: PURPLE
IN: tufa zup OUT: PURPLE BLUE
IN: wif blicket OUT: GREEN GREEN
IN: dax wif OUT: RED GREEN
IN: tufa tufa OUT: PURPLE PURPLE

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