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

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

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