diff --git a/src/parser.rs b/src/parser.rs
index dd8e5b0..5110cbc 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -419,6 +419,8 @@ impl Type {
             Type::Or(types) => types.iter().any(Self::maybe_file_to_send),
             Type::Array(ty) => ty.maybe_file_to_send(),
             // Kinda bad, but the alternative is hardcoding every value
+            // Another alternative is to store every type's description and use it
+            // Because Bot API docs are inconsitent with it's types
             Type::Object(object) => object.starts_with("Input") && object != "InputPollOption",
         }
     }
@@ -489,7 +491,10 @@ pub enum MethodArgs {
 
 impl MethodArgs {
     fn new(args: Vec<Argument>) -> Self {
-        if args.iter().any(|arg| arg.kind.maybe_file_to_send()) {
+        if args
+            .iter()
+            .any(|arg| arg.is_file_to_upload_according_to_desc() || arg.kind.maybe_file_to_send())
+        {
             Self::WithMultipart(args)
         } else if args.is_empty() {
             Self::No
@@ -507,6 +512,13 @@ pub struct Argument {
     pub description: String,
 }
 
+impl Argument {
+    /// This is more reliable than checking the type
+    fn is_file_to_upload_according_to_desc(&self) -> bool {
+        self.description.contains("multipart/form-data")
+    }
+}
+
 fn make_url_from_fragment(fragment: String) -> String {
     assert!(fragment.starts_with('#'));
     format!("{}{}", BOT_API_DOCS_URL, fragment)
diff --git a/src/parser/sentence.rs b/src/parser/sentence.rs
index 4c76ad2..201987d 100644
--- a/src/parser/sentence.rs
+++ b/src/parser/sentence.rs
@@ -19,22 +19,10 @@ impl Pattern {
     fn parts(self) -> Vec<SearcherPattern> {
         match self {
             Pattern::ReturnType => vec![
-                SearcherPattern::default()
-                    .by_word("Returns")
-                    .by_word("the")
-                    .by_word("bot's")
-                    .by_word("Telegram")
-                    .exclude(),
-                SearcherPattern::default()
-                    .by_word("Returns")
-                    .by_word("the")
-                    .by_word("list")
-                    .by_word("of")
-                    .exclude(),
                 SearcherPattern::default().by_word("On").by_word("success"),
+                SearcherPattern::default().by_word("returns").by_word("a"),
+                SearcherPattern::default().by_word("Returns").by_word("an"),
                 SearcherPattern::default().by_word("Returns"),
-                SearcherPattern::default().by_word("returns"),
-                SearcherPattern::default().by_word("An"),
             ],
             Pattern::Default => vec![
                 SearcherPattern::default().by_word("Defaults").by_word("to"),
@@ -48,6 +36,11 @@ impl Pattern {
                     .by_word("be")
                     .by_kind(PartKind::Italic)
                     .with_offset(-1),
+                SearcherPattern::default()
+                    .by_word("must")
+                    .by_word("be")
+                    .by_quotes()
+                    .with_offset(-1),
                 SearcherPattern::default()
                     .by_word("always")
                     .by_quotes()
@@ -63,6 +56,11 @@ impl Pattern {
             ],
             Pattern::OneOf => {
                 vec![
+                    SearcherPattern::default()
+                        .by_word("Can")
+                        .by_word("be")
+                        .by_word("available")
+                        .exclude(),
                     SearcherPattern::default().by_word("either"),
                     SearcherPattern::default().by_word("One").by_word("of"),
                     SearcherPattern::default().by_word("one").by_word("of"),
@@ -129,6 +127,8 @@ impl PartialEq<&[Part]> for SearcherPattern {
 #[logos(skip r"[, ]")]
 #[logos(skip "\n")]
 enum SentenceLexer {
+    #[regex(r"\.[A-Z][A-Z\d]{2,}")]
+    FileExt,
     #[regex(r#"[^, "“”\(\)\.\n]+"#)]
     Word,
     #[token(".")]
@@ -418,6 +418,10 @@ pub(crate) fn parse_node(elem: NodeRef<Node>) -> Result<Vec<Sentence>, ParseErro
                     };
 
                     match token {
+                        SentenceLexer::FileExt => {
+                            let part = Part::new(lexeme.to_string());
+                            parts.push(part);
+                        }
                         SentenceLexer::Word if !paren => {
                             let part = Part::new(lexeme.to_string());
                             parts.push(part);
@@ -514,10 +518,15 @@ pub fn parse_type_custom<E, T>(
 where
     E: Fn(&SentenceRef) -> Option<T>,
 {
-    let sentences = text.sentences()?;
+    let mut sentences = text.sentences()?;
     let mut result = None;
     let patterns = pattern.parts();
 
+    // Ignore the first sentence if it's not the only one and we are looking for a return type
+    if pattern == Pattern::ReturnType && sentences.len() > 1 {
+        sentences.remove(0);
+    }
+
     'sentences: for sentence in &sentences {
         for pattern in &patterns {
             for (word_idx, words) in sentence.parts.windows(pattern.parts.len()).enumerate() {
diff --git a/src/util.rs b/src/util.rs
index 9a011f4..36de6c0 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -6,7 +6,7 @@ pub trait StrExt {
     fn is_first_letter_lowercase(self) -> bool;
 }
 
-impl<'a> StrExt for &'a str {
+impl StrExt for &str {
     fn is_first_letter_lowercase(self) -> bool {
         self.chars().next().map(|c| c.is_lowercase()).unwrap()
     }