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

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

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