*SUPPORT*
IN: tufa gazzer dax blicket OUT: GREEN RED YELLOW
IN: kiki dax blicket OUT: PINK YELLOW
IN: blicket OUT: YELLOW
IN: tufa fep tufa OUT: GREEN GREEN GREEN
IN: gazzer fep gazzer OUT: RED RED RED
IN: kiki blicket OUT: PINK YELLOW
IN: gazzer dax tufa OUT: RED GREEN
IN: tufa zup tufa OUT: GREEN GREEN
IN: tufa tufa fep tufa OUT: GREEN GREEN GREEN GREEN
IN: tufa blicket blicket OUT: GREEN YELLOW YELLOW
IN: gazzer dax gazzer OUT: RED RED
IN: tufa dax blicket OUT: GREEN YELLOW
IN: gazzer zup blicket OUT: RED YELLOW
IN: tufa dax tufa OUT: GREEN GREEN

*QUERY*
IN: blicket zup gazzer OUT: YELLOW RED
IN: blicket fep tufa OUT: YELLOW GREEN GREEN
IN: blicket zup tufa OUT: YELLOW GREEN
IN: gazzer tufa dax tufa OUT: RED GREEN GREEN
IN: kiki OUT: PINK
IN: tufa tufa blicket OUT: GREEN GREEN YELLOW
IN: kiki fep gazzer OUT: PINK RED RED
IN: gazzer kiki dax kiki OUT: RED PINK PINK
IN: tufa OUT: GREEN
IN: kiki kiki dax gazzer OUT: PINK PINK RED

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