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

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

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