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

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

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