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

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

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