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

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

*GRAMMAR*
wif -> GREEN 
 tufa -> YELLOW 
 lug -> PURPLE 
 dax -> RED 
 x1 blicket -> [x1] [x1] 
 u1 gazzer u2 -> [u1] [u2] [u1] [u1] 
 x1 fep x2 -> [x1] [x2] [x1] [x2] [x2] [x2] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 