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

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

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