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

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

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