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

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

*GRAMMAR*
lug -> RED 
 wif -> BLUE 
 gazzer -> PURPLE 
 dax -> GREEN 
 u1 tufa -> [u1] [u1] 
 x1 kiki x2 -> [x1] [x1] [x2] [x1] 
 x1 zup -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 