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

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

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