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

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

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