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

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

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