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

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

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