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

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

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