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

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

*GRAMMAR*
gazzer -> PURPLE 
 wif -> RED 
 blicket -> GREEN 
 fep -> BLUE 
 u1 tufa -> [u1] [u1] 
 x1 lug x2 -> [x1] [x1] [x2] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 