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

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

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