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

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

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