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

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

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