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

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

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