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

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

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