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

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

*GRAMMAR*
gazzer -> RED 
 tufa -> GREEN 
 zup -> PURPLE 
 fep -> BLUE 
 u1 wif u2 -> [u2] [u2] [u1] 
 x1 blicket x2 -> [x1] [x1] [x2] [x1] [x2] 
 x1 kiki -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 