*SUPPORT*
IN: gazzer fep OUT: RED RED
IN: tufa zup wif OUT: BLUE GREEN BLUE GREEN
IN: kiki tufa dax wif OUT: PURPLE BLUE BLUE PURPLE BLUE BLUE
IN: tufa zup OUT: BLUE GREEN
IN: zup zup wif wif OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa dax wif wif OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: zup dax OUT: GREEN GREEN
IN: gazzer dax OUT: RED RED
IN: gazzer OUT: RED
IN: tufa dax wif OUT: BLUE BLUE BLUE BLUE
IN: tufa tufa dax OUT: BLUE BLUE BLUE
IN: zup zup dax wif OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa tufa OUT: BLUE BLUE
IN: kiki dax OUT: PURPLE PURPLE

*QUERY*
IN: tufa OUT: BLUE
IN: zup OUT: GREEN
IN: tufa fep wif OUT: BLUE BLUE BLUE BLUE
IN: gazzer zup dax OUT: RED GREEN GREEN
IN: gazzer dax wif OUT: RED RED RED RED
IN: tufa zup gazzer dax wif OUT: BLUE GREEN RED RED BLUE GREEN RED RED
IN: kiki fep OUT: PURPLE PURPLE
IN: tufa dax OUT: BLUE BLUE
IN: zup fep wif OUT: GREEN GREEN GREEN GREEN
IN: tufa fep OUT: BLUE BLUE

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