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

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

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