diff --git a/dictionaries/dix_categ.json b/dictionaries/dix_categ.json
index 4fe6176..ade48cb 100644
--- a/dictionaries/dix_categ.json
+++ b/dictionaries/dix_categ.json
@@ -1 +1 @@
-{"research": "Univ/Inst", "uniwersytet": "Univ/Inst", "investigacions": "Univ/Inst", "institu": "Univ/Inst", "istitut": "Univ/Inst", "univ": "Univ/Inst", "col": "Univ/Inst", "center": "Univ/Inst", "polytechnic": "Univ/Inst", "politecnico": "Univ/Inst", "polutekhneio": "Univ/Inst", "centre": "Univ/Inst", "kentro": "Univ/Inst", "cnrs": "Univ/Inst", "faculty": "Univ/Inst", "school": "Univ/Inst", "academ": "Univ/Inst", "akadem": "Univ/Inst", "hochschule": "Univ/Inst", "ecole": "Univ/Inst", "tech": "Univ/Inst", "observ": "Univ/Inst", "escuela": "Univ/Inst", "escola": "Univ/Inst", "discovery programe": "Univ/Inst", "ku leuven": "Univ/Inst", "ucla": "Univ/Inst", "eth zurich": "Univ/Inst", "athena": "Univ/Inst", "openaire": "Univ/Inst", "erasmus": "Univ/Inst", "ist austria": "Univ/Inst", "lmu munich": "Univ/Inst", "cancer trials ireland": "Univ/Inst", "food safety authority": "Univ/Inst", "ucd": "Univ/Inst", "tcd": "Univ/Inst", "apc microbiome": "Univ/Inst", "nasa": "Univ/Inst", "ucl": "Univ/Inst", "zentrum": "Univ/Inst", "ncsr demokritos": "Univ/Inst", "panepist": "Univ/Inst", "forth": "Univ/Inst", "nui galway": "Univ/Inst", "nui maynooth": "Univ/Inst", "tu wien": "Univ/Inst", "tu dublin": "Univ/Inst", "lab": "Laboratory", "science": "Laboratory", "cientific": "Laboratory", "hospital": "Hospital", "clinic": "Hospital", "hopital": "Hospital", "klinik": "Hospital", "oncol": "Hospital", "medical": "Hospital", "health": "Hospital", "medicin": "Hospital", "nosokomei": "Hospital", "gmbh": "Company", "company": "Company", "industr": "Company", "etaireia": "Company", "corporation": "Company", "inc": "Company", "museum": "Museum", "library": "Museum", "foundation": "Foundation", "asociation": "Foundation", "organization": "Foundation", "society": "Foundation", "group": "Foundation", "royal": "Foundation", "ofice": "Foundation", "trust": "Foundation", "district": "Government", "federation": "Government", "government": "Government", "municipal": "Government", "county": "Government", "council": "Government", "agency": "Government", "unknown": "Unknown", "google": "Specific", "yahoo": "Specific", "ebay": "Specific", "microsoft": "Specific", "teagasc": "Specific", "ibm research": "Specific", "alergan": "Specific", "analog devices": "Specific", "medtronic": "Specific", "xilinx": "Specific", "pfizer": "Specific", "glaxosmithkline": "Specific", "astrazeneca": "Specific"}
\ No newline at end of file
+{"research": "Univ/Inst", "recherche": "Univ/Inst", "uniwersytet": "Univ/Inst", "investigacions": "Univ/Inst", "institu": "Univ/Inst", "istitut": "Univ/Inst", "univ": "Univ/Inst", "col": "Univ/Inst", "center": "Univ/Inst", "polytechnic": "Univ/Inst", "politecnico": "Univ/Inst", "polutekhneio": "Univ/Inst", "centre": "Univ/Inst", "kentro": "Univ/Inst", "cnrs": "Univ/Inst", "faculty": "Univ/Inst", "school": "Univ/Inst", "academ": "Univ/Inst", "akadem": "Univ/Inst", "hochschule": "Univ/Inst", "ecole": "Univ/Inst", "tech": "Univ/Inst", "observ": "Univ/Inst", "escuela": "Univ/Inst", "escola": "Univ/Inst", "discovery programe": "Univ/Inst", "ku leuven": "Univ/Inst", "ucla": "Univ/Inst", "eth zurich": "Univ/Inst", "athena": "Univ/Inst", "openaire": "Univ/Inst", "erasmus": "Univ/Inst", "ist austria": "Univ/Inst", "lmu munich": "Univ/Inst", "cancer trials ireland": "Univ/Inst", "food safety authority": "Univ/Inst", "ucd": "Univ/Inst", "tcd": "Univ/Inst", "apc microbiome": "Univ/Inst", "nasa": "Univ/Inst", "ucl": "Univ/Inst", "zentrum": "Univ/Inst", "ncsr demokritos": "Univ/Inst", "panepist": "Univ/Inst", "nui galway": "Univ/Inst", "nui maynooth": "Univ/Inst", "tu wien": "Univ/Inst", "tu dublin": "Univ/Inst", "lab": "Laboratory", "science": "Laboratory", "cientific": "Laboratory", "hospital": "Hospital", "clinic": "Hospital", "hopital": "Hospital", "klinik": "Hospital", "oncol": "Hospital", "medical": "Hospital", "health": "Hospital", "medicin": "Hospital", "nosokomei": "Hospital", "gmbh": "Company", "company": "Company", "industr": "Company", "etaireia": "Company", "corporation": "Company", "inc": "Company", "museum": "Museum", "library": "Museum", "foundation": "Foundation", "asociation": "Foundation", "organization": "Foundation", "society": "Foundation", "group": "Foundation", "royal": "Foundation", "ofice": "Foundation", "trust": "Foundation", "district": "Government", "federation": "Government", "government": "Government", "municipal": "Government", "county": "Government", "council": "Government", "agency": "Government", "unknown": "Unknown", "google": "Specific", "yahoo": "Specific", "ebay": "Specific", "microsoft": "Specific", "teagasc": "Specific", "ibm research": "Specific", "alergan": "Specific", "analog devices": "Specific", "medtronic": "Specific", "xilinx": "Specific", "pfizer": "Specific", "glaxosmithkline": "Specific", "astrazenecaboehringer ingelheim": "Specific", "demokritos": "Specific", "siemens": "Specific", "forth": "Specific"}
\ No newline at end of file
diff --git a/txt_files/stop_words.txt b/txt_files/stop_words.txt
index 08800b2..7ecd2ac 100644
--- a/txt_files/stop_words.txt
+++ b/txt_files/stop_words.txt
@@ -12,3 +12,4 @@ and
 fur
 for
 und
+zu