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

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

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