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

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

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