*SUPPORT*
IN: tufa fep wif OUT: PURPLE YELLOW
IN: dax wif OUT: PINK YELLOW
IN: tufa fep tufa kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax tufa OUT: PINK PURPLE
IN: tufa fep wif fep wif OUT: PURPLE YELLOW YELLOW
IN: tufa kiki fep zup fep dax OUT: PURPLE PURPLE GREEN PINK
IN: wif fep dax OUT: YELLOW PINK
IN: tufa zup kiki OUT: PURPLE GREEN PURPLE GREEN
IN: wif lug dax OUT: PINK YELLOW
IN: tufa kiki OUT: PURPLE PURPLE
IN: dax fep zup OUT: PINK GREEN
IN: dax zup kiki OUT: PINK GREEN PINK GREEN
IN: tufa dax dax fep tufa OUT: PURPLE PINK PINK PURPLE
IN: zup tufa zup fep tufa OUT: GREEN PURPLE GREEN PURPLE

*QUERY*
IN: dax tufa wif lug zup OUT: GREEN PINK PURPLE YELLOW
IN: wif fep zup kiki OUT: YELLOW GREEN YELLOW GREEN
IN: wif OUT: YELLOW
IN: tufa OUT: PURPLE
IN: wif zup fep wif OUT: YELLOW GREEN YELLOW
IN: dax kiki kiki fep tufa OUT: PINK PINK PINK PINK PURPLE
IN: dax wif dax OUT: PINK YELLOW PINK
IN: dax OUT: PINK
IN: zup OUT: GREEN
IN: tufa kiki kiki OUT: PURPLE PURPLE PURPLE PURPLE

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