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

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

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