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

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

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