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

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

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