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

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

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