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

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

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