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

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

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