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

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

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