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

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

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