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

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

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