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

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

*GRAMMAR*
gazzer -> RED 
 lug -> YELLOW 
 fep -> GREEN 
 wif -> PINK 
 u1 dax u2 -> [u1] [u2] 
 u1 kiki -> [u1] [u1] 
 u1 zup -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 