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

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

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