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

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

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