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

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

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