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

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

*GRAMMAR*
lug -> PURPLE 
 zup -> YELLOW 
 fep -> GREEN 
 kiki -> RED 
 u1 tufa u2 -> [u2] [u1] 
 u1 wif -> [u1] [u1] [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 