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

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

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