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

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

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