Extract subgraphs or parts of a graph defined by query criteria. -n SEGMENT --node=SEGMENT Segment name from which to begin the traversal -c STEPS --context-steps=STEPS The number of segments away from the initial segments to traverse -r PATH_RANGE --path-range=PATH_RANGE Extract segments in PATH_RANGE, specified in the path[:pos1[-pos2]] format. pos1 and pos2 are 0-based coordinates. The extracted segments include pos1 (inclusive) but not pos2 (exclusive).