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

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

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