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

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

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