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

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

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