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

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

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