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

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

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