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

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

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