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

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

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