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

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

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