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

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

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