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

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

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