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

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

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