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

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

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