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

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

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