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

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

*GRAMMAR*
wif -> GREEN 
 blicket -> BLUE 
 tufa -> PINK 
 fep -> YELLOW 
 x1 dax x2 -> [x2] [x1] 
 x1 zup u1 -> [u1] [x1] [x1] 
 u1 gazzer x1 -> [x1] [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 