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

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

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