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

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

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