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

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

*GRAMMAR*
fep -> GREEN 
 wif -> PURPLE 
 gazzer -> RED 
 lug -> BLUE 
 x1 tufa x2 -> [x2] [x1] [x2] 
 x1 blicket x2 -> [x1] [x2] [x2] 
 u1 dax u2 -> [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 