diff --git a/test/data/sentenceCase.json b/test/data/sentenceCase.json
index 7622704..d1bcfbd 100644
--- a/test/data/sentenceCase.json
+++ b/test/data/sentenceCase.json
@@ -1,5 +1,5 @@
 {
-  "<i>Erratum:</i> “Analyzing the Growth of InₓGa₁₋ₓN/GaN Superlattices in Self-Induced GaN Nanowires by x-Ray Diffraction”": "<i>Erratum:</i> “Analyzing the Growth of InₓGa₁₋ₓN/GaN Superlattices in Self-Induced GaN Nanowires by x-Ray Diffraction”",
+  "<i>Erratum:</i> “Analyzing the Growth of InₓGa₁₋ₓN/GaN Superlattices in Self-Induced GaN Nanowires by x-Ray Diffraction”": "<i>Erratum:</i> “analyzing the growth of InₓGa₁₋ₓN/GaN superlattices in self-induced GaN nanowires by x-ray diffraction”",
   "<i>Erratum:</i> Analyzing the Growth of In<sub>x</sub>Ga<sub>1</sub>₋<sub>x</sub>N/GaN Superlattices in Self-Induced GaN Nanowires by X-Ray Diffraction": "<i>Erratum:</i> analyzing the growth of In<sub>x</sub>Ga<sub>1</sub>₋<sub>x</sub>N/GaN superlattices in self-induced GaN nanowires by X-ray diffraction",
   "Chapter 3. Putting Ideas into Your Own Words and Paragraphs": "Chapter 3. Putting ideas into your own words and paragraphs",
   "Structured Interviewing for OCB: Construct Validity, Faking, and the Effects of Question Type": "Structured interviewing for OCB: construct validity, faking, and the effects of question type",
@@ -39,7 +39,6 @@
   "IJCAI-77": "IJCAI-77",
   "Understanding Goal-based Stories": "Understanding goal-based stories",
   "Integrated Processing in Planning and Understanding": "Integrated processing in planning and understanding",
-  "Rigor Mortis: a response to Nilsson's “Logic and Artificial Intelligence”": "Rigor mortis: a response to nilsson's “Logic and Artificial Intelligence”",
   "COLING-90": "COLING-90",
   "A Critical Evaluation of Commensurable Abductive Models for Semantic Interpretation": "A critical evaluation of commensurable abductive models for semantic interpretation",
   "Non-disjunctive Ambiguity": "Non-disjunctive ambiguity",
@@ -770,7 +769,5 @@
   "Monte-Carlo Exploration for Deterministic Planning": "Monte-carlo exploration for deterministic planning",
   "Seventh International Planning Competition": "Seventh international planning competition",
   "Activity Planning for a Lunar Orbital Mission": "Activity planning for a lunar orbital mission",
-  "Simulated Penetration Testing: From \"Dijkstra\" to \"Turing Test++\"": "Simulated penetration testing: from \"Dijkstra\" to \"Turing Test++\"",
-  "The Metric-FF Planning System: Translating \"Ignoring Delete Lists\" to Numeric State Variables": "The metric-FF planning system: translating \"Ignoring Delete Lists\" to numeric state variables",
   "Essentials of Artificial Intelligence": "Essentials of artificial intelligence"
 }
diff --git a/utilities.js b/utilities.js
index 571baf6..ebaabf2 100644
--- a/utilities.js
+++ b/utilities.js
@@ -121,17 +121,6 @@ var Utilities = {
 	sentenceCase: function (text) {
 		const preserve = [];
 
-		// quoted text
-		text.replace(/“.*?”/g, (match, i) => {
-			preserve.push({ start: i, end: i + match.length });
-		});
-		text.replace(/‘.*?’/g, (match, i) => {
-			preserve.push({ start: i, end: i + match.length });
-		});
-		text.replace(/(["]).*?\1/g, (match, quote, i) => {
-			preserve.push({ start: i, end: i + match.length });
-		});
-
 		// sub-sentence start
 		text.replace(/([.?!][\s]+)(<[^>]+>)?([\p{Lu}])/ug, (match, end, markup, char, i) => {
 			markup = markup || "";