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

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

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