*SUPPORT*
IN: fep blicket wif blicket OUT: GREEN BLUE RED BLUE
IN: wif gazzer tufa OUT: RED PURPLE
IN: wif kiki wif OUT: RED RED RED RED
IN: fep gazzer fep OUT: GREEN GREEN
IN: tufa fep OUT: PURPLE GREEN
IN: tufa zup tufa OUT: PURPLE PURPLE PURPLE
IN: fep zup fep OUT: GREEN GREEN GREEN
IN: wif zup blicket kiki blicket OUT: BLUE BLUE BLUE BLUE RED BLUE BLUE RED
IN: fep gazzer blicket OUT: GREEN BLUE
IN: blicket zup blicket OUT: BLUE BLUE BLUE
IN: tufa OUT: PURPLE
IN: fep wif zup wif OUT: GREEN RED RED RED
IN: tufa gazzer fep OUT: PURPLE GREEN
IN: wif fep zup wif OUT: RED RED RED GREEN

*QUERY*
IN: blicket zup fep kiki fep OUT: GREEN GREEN GREEN GREEN BLUE GREEN GREEN BLUE
IN: blicket gazzer fep OUT: BLUE GREEN
IN: tufa zup wif OUT: RED RED PURPLE
IN: wif zup tufa OUT: PURPLE PURPLE RED
IN: blicket gazzer blicket OUT: BLUE BLUE
IN: wif gazzer blicket kiki blicket OUT: BLUE BLUE RED BLUE RED BLUE
IN: tufa wif gazzer tufa OUT: PURPLE RED PURPLE
IN: wif zup blicket OUT: BLUE BLUE RED
IN: blicket OUT: BLUE
IN: tufa kiki fep OUT: GREEN GREEN PURPLE PURPLE

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