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

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

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