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

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

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