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

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

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