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

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

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