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

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

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