add llm chapter

boa/mining/aufgabe_01_a.boa

@@ -1,5 +1,5 @@
-# Java-Job: 111005
-# Python-Job: 111006
+# Java-Job: 111839
+# Python-Job: 111840
 
 # Includes all revisions
 p: Project = input;

boa/mining/aufgabe_01_b.boa

@@ -1,5 +1,5 @@
-# Java-Job: 111694
-# Python-Job: 111439
+# Java-Job: Throws empty error on the "2022 Jan/Java" dataset.
+# Python-Job: 111838
 
 # Includes all revisions
 p: Project = input;
@@ -12,7 +12,7 @@ cur_date: time;
 
 statement_counter := visitor {
     before node: Statement -> {
-        if (def(node.kind) and (node.kind == StatementKind.TRY or node.kind == StatementKind.WITH))
+        if (node.kind == StatementKind.TRY or node.kind == StatementKind.WITH)
             relative_list[p.name][yearof(cur_date)] << 1;
         else
             relative_list[p.name][yearof(cur_date)] << 0;
@@ -21,8 +21,8 @@ statement_counter := visitor {
 
 visit(p, visitor {
     before node: CodeRepository -> {
-        for (minus_year: int=22; minus_year >= 0; minus_year--) {
-            cur_date = addyear(T"Dec 31, 2022, 10:00:00 AM", -minus_year);
+        for (minus_year: int=19; minus_year >= 0; minus_year--) {
+            cur_date = addyear(T"Dec 31, 2019, 10:00:00 AM", -minus_year);
             snapshot := getsnapshot(node, cur_date);
 
             foreach (i: int; def(snapshot[i]))