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

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

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