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

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

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