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

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

*GRAMMAR*
wif -> RED 
 zup -> PINK 
 tufa -> YELLOW 
 gazzer -> BLUE 
 u1 fep u2 -> [u1] [u2] [u2] 
 u1 kiki -> [u1] [u1] 
 u1 dax u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 