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

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

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