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

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

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