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

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

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