lastMaterialOrData = dataNode;
if (lastProcess != null) {
lastProcess.addOutputNode(dataNode);
lastProcess = null;
}
<BUG>if (lastAssayNode !=null){
lastAssayNode.addOutputNode(dataNode);
lastAssayNode = null;
}</BUG>
} else if (column.matches(ISAMaterialAttribute.REGEXP)) {

lastMaterialOrData = dataNode;
if (lastProcess != null) {
lastProcess.addOutputNode(dataNode);
lastProcess = null;
}
} else if (column.matches(ISAMaterialAttribute.REGEXP)) {
