*SUPPORT*
IN: wif gazzer OUT: GREEN GREEN
IN: tufa gazzer OUT: BLUE BLUE
IN: fep gazzer OUT: RED RED
IN: tufa zup OUT: BLUE BLUE
IN: wif blicket gazzer OUT: GREEN YELLOW YELLOW
IN: tufa blicket gazzer dax tufa zup OUT: BLUE BLUE BLUE YELLOW YELLOW BLUE YELLOW YELLOW
IN: wif zup OUT: GREEN GREEN
IN: tufa dax wif OUT: GREEN BLUE BLUE
IN: blicket gazzer OUT: YELLOW YELLOW
IN: wif dax wif dax wif gazzer OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: blicket blicket zup dax blicket fep OUT: YELLOW RED YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: blicket OUT: YELLOW
IN: fep tufa zup OUT: RED BLUE BLUE
IN: fep OUT: RED

*QUERY*
IN: blicket zup OUT: YELLOW YELLOW
IN: fep zup OUT: RED RED
IN: wif OUT: GREEN
IN: blicket blicket OUT: YELLOW YELLOW
IN: wif fep OUT: GREEN RED
IN: tufa wif wif tufa OUT: BLUE GREEN GREEN BLUE
IN: tufa gazzer dax fep OUT: RED BLUE BLUE BLUE BLUE
IN: wif tufa zup dax wif gazzer OUT: GREEN GREEN GREEN BLUE BLUE GREEN BLUE BLUE
IN: blicket fep OUT: YELLOW RED
IN: tufa OUT: BLUE

*GRAMMAR*
tufa -> BLUE 
 wif -> GREEN 
 fep -> RED 
 blicket -> YELLOW 
 u1 zup -> [u1] [u1] 
 u1 gazzer -> [u1] [u1] 
 x1 dax x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 