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

*QUERY*
IN: zup dax tufa zup dax lug zup dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: fep fep tufa fep gazzer OUT: PURPLE RED PURPLE PURPLE
IN: fep lug blicket tufa fep OUT: PURPLE YELLOW PURPLE
IN: gazzer dax OUT: RED RED
IN: zup dax OUT: GREEN GREEN
IN: fep dax tufa blicket dax OUT: YELLOW YELLOW PURPLE PURPLE
IN: blicket dax tufa zup dax OUT: GREEN GREEN YELLOW YELLOW
IN: fep OUT: PURPLE
IN: blicket blicket dax OUT: YELLOW YELLOW YELLOW
IN: zup zup dax OUT: GREEN GREEN GREEN

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