*SUPPORT*
IN: blicket OUT: BLUE
IN: wif lug blicket OUT: BLUE GREEN
IN: blicket zup gazzer blicket OUT: BLUE BLUE BLUE
IN: wif lug wif OUT: GREEN GREEN
IN: tufa lug wif gazzer wif OUT: GREEN GREEN PURPLE
IN: wif tufa lug wif OUT: GREEN GREEN PURPLE
IN: wif dax OUT: GREEN YELLOW
IN: tufa tufa OUT: PURPLE PURPLE
IN: dax tufa lug wif OUT: YELLOW GREEN PURPLE
IN: blicket blicket OUT: BLUE BLUE
IN: tufa OUT: PURPLE
IN: dax zup OUT: YELLOW YELLOW
IN: blicket lug blicket OUT: BLUE BLUE
IN: dax gazzer wif OUT: GREEN YELLOW

*QUERY*
IN: dax dax dax zup OUT: YELLOW YELLOW YELLOW YELLOW
IN: wif wif zup OUT: GREEN GREEN GREEN
IN: tufa lug tufa OUT: PURPLE PURPLE
IN: tufa gazzer dax OUT: YELLOW PURPLE
IN: wif lug tufa gazzer tufa gazzer wif OUT: GREEN PURPLE PURPLE GREEN
IN: wif zup OUT: GREEN GREEN
IN: tufa lug wif OUT: GREEN PURPLE
IN: wif OUT: GREEN
IN: blicket lug wif OUT: GREEN BLUE
IN: dax gazzer dax OUT: YELLOW YELLOW

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