diff --git a/src/lib/dict.ts b/src/lib/dict.ts
index 539e0c4..50603a6 100644
--- a/src/lib/dict.ts
+++ b/src/lib/dict.ts
@@ -9,10 +9,9 @@ export class Dict {
 		this.letters = new Set([...words.values()].map((w) => w.split("")).flat());
 	}
 
-	static async from_file(path: string, length: number) {
+	static from_lines(lines: string[], length: number) {
 		const words = new Set<string>();
-		const content = await Deno.readTextFile(path);
-		for (const word of content.split("\n")) {
+		for (const word of lines) {
 			const word_ = word.trim().toLowerCase();
 			if (word_.length !== length) continue;
 			if (contains_any(word_, [" ", "-", "."])) continue;
@@ -21,8 +20,13 @@ export class Dict {
 		return new Dict(words, length);
 	}
 
+	static async from_text_file(path: string, length: number) {
+		const content = await Deno.readTextFile(path);
+		return Dict.from_lines(content.split("\n"), length);
+	}
+
 	[Symbol.for("Deno.customInspect")]() {
-		return `Dict { ${this.words.size} words }`;
+		return `Dict { ${this.words.size} words, ${this.letters.size} letters }`;
 	}
 }