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

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

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