*SUPPORT*
IN: tufa kiki kiki fep OUT: RED RED RED RED RED RED RED RED
IN: tufa fep OUT: RED RED
IN: lug OUT: YELLOW
IN: zup OUT: PURPLE
IN: wif lug dax fep OUT: GREEN YELLOW YELLOW GREEN YELLOW YELLOW
IN: tufa OUT: RED
IN: wif zup dax OUT: GREEN PURPLE PURPLE
IN: tufa zup OUT: RED PURPLE
IN: tufa fep kiki fep OUT: RED RED RED RED RED RED RED RED
IN: lug kiki kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: lug fep OUT: YELLOW YELLOW
IN: lug dax OUT: YELLOW YELLOW
IN: tufa kiki fep OUT: RED RED RED RED
IN: zup dax OUT: PURPLE PURPLE

*QUERY*
IN: lug wif OUT: YELLOW GREEN
IN: lug dax fep OUT: YELLOW YELLOW YELLOW YELLOW
IN: wif dax OUT: GREEN GREEN
IN: wif OUT: GREEN
IN: wif zup fep OUT: GREEN PURPLE GREEN PURPLE
IN: wif lug fep fep OUT: GREEN YELLOW GREEN YELLOW GREEN YELLOW GREEN YELLOW
IN: tufa dax OUT: RED RED
IN: wif kiki fep fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa lug kiki kiki OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: zup kiki OUT: PURPLE PURPLE

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