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

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

*GRAMMAR*
dax -> PURPLE 
 wif -> GREEN 
 zup -> RED 
 lug -> YELLOW 
 u1 gazzer -> [u1] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 tufa u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 