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

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

*GRAMMAR*
fep -> PURPLE 
 tufa -> YELLOW 
 blicket -> GREEN 
 wif -> BLUE 
 u1 dax x1 -> [u1] [x1] [x1] 
 u1 zup u2 -> [u1] [u2] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 