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

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

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