*SUPPORT*
IN: zup tufa OUT: BLUE BLUE
IN: gazzer fep wif OUT: GREEN GREEN PURPLE
IN: zup fep zup tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki wif OUT: PINK GREEN
IN: gazzer fep kiki OUT: PINK PINK PURPLE
IN: gazzer fep gazzer OUT: PURPLE PURPLE PURPLE
IN: kiki kiki fep zup tufa OUT: PINK BLUE BLUE PINK PINK BLUE BLUE PINK
IN: gazzer fep zup OUT: BLUE BLUE PURPLE
IN: zup OUT: BLUE
IN: kiki fep gazzer OUT: PURPLE PURPLE PINK
IN: zup fep zup OUT: BLUE BLUE BLUE
IN: wif fep wif OUT: GREEN GREEN GREEN
IN: gazzer OUT: PURPLE
IN: wif wif dax gazzer dax kiki tufa OUT: GREEN PINK PURPLE GREEN GREEN PINK PURPLE GREEN

*QUERY*
IN: kiki OUT: PINK
IN: zup dax gazzer dax wif fep zup OUT: BLUE BLUE GREEN PURPLE BLUE
IN: wif dax zup zup fep gazzer OUT: BLUE PURPLE PURPLE BLUE GREEN
IN: zup fep gazzer OUT: PURPLE PURPLE BLUE
IN: kiki wif fep zup OUT: PINK BLUE BLUE GREEN
IN: gazzer dax kiki dax kiki OUT: PINK PINK PURPLE
IN: wif wif fep zup OUT: GREEN BLUE BLUE GREEN
IN: gazzer wif OUT: PURPLE GREEN
IN: kiki fep gazzer tufa OUT: PURPLE PURPLE PINK PURPLE PURPLE PINK
IN: wif dax wif OUT: GREEN GREEN

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