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

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

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