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

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

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