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

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

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