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

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

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