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

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

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