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

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

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