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

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

*GRAMMAR*
fep -> GREEN 
 gazzer -> PURPLE 
 wif -> RED 
 lug -> BLUE 
 x1 dax x2 -> [x1] [x2] [x1] 
 x1 zup x2 -> [x2] [x1] [x2] 
 u1 tufa x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 