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

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

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