diff --git a/java/ql/src/semmle/code/java/frameworks/apache/Lang.qll b/java/ql/src/semmle/code/java/frameworks/apache/Lang.qll
index b87c7044216..7ff539ec041 100644
--- a/java/ql/src/semmle/code/java/frameworks/apache/Lang.qll
+++ b/java/ql/src/semmle/code/java/frameworks/apache/Lang.qll
@@ -643,25 +643,15 @@ private class ApacheToStringBuilderModel extends SummaryModelCsv {
     row =
       [
         "org.apache.commons.lang3.builder;ToStringBuilder;false;toString;;;Argument[-1];ReturnValue;taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.Object);;Argument[0];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.Object);;Argument[0];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.Object[]);;Argument[0];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.Object[]);;Argument[0];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[]);;Argument[0..1];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[]);;Argument[0..1];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,boolean);;Argument[0];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,boolean);;Argument[0];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object);;Argument[0..1];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object);;Argument[0..1];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[],boolean);;Argument[0];ReturnValue;taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[],boolean);;Argument[0];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[],boolean);;Argument[1];ReturnValue;taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[],boolean);;Argument[1];Argument[-1];taint",
+        "org.apache.commons.lang3.builder;ToStringBuilder;false;append;(java.lang.String,java.lang.Object[],boolean);;Argument[0..1];Argument[-1];taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;build;;;Argument[-1];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;getStringBuffer;;;Argument[-1];ReturnValue;taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;appendToString;;;Argument[0];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;appendToString;;;Argument[0];Argument[-1];taint",
-        "org.apache.commons.lang3.builder;ToStringBuilder;false;appendSuper;;;Argument[0];ReturnValue;taint",
         "org.apache.commons.lang3.builder;ToStringBuilder;false;appendSuper;;;Argument[0];Argument[-1];taint",
         // The following are value-preserving steps for fluent methods:
         "org.apache.commons.lang3.builder;ToStringBuilder;false;append;;;Argument[-1];ReturnValue;value",