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

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

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