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

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

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