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

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

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