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

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

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