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

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

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