連続する文で同じ最初の単語（または最初の2語）をどれだけ繰り返しているかを確認。すべての文が「The」や「I」で始まる単調な文章を浮き彫りにします。
Use the sentence beginnings analyzer when editing fiction, narrative essays, or any prose that should read with rhythm. Common targets: catch over-use of "I", "The", "This", "It" at the start of consecutive sentences.
Sentence Length Variety measures rhythm by length; Sentence Beginnings Variety measures it by lexical patterns. Use both for a complete rhythm audit.
The analyzer takes the first word (or first two words) of every sentence and counts the frequency.
A variety score (unique openings / total sentences) summarizes the pattern — above 75% is varied, below 50% is monotonous.
It flags any opening word that dominates more than 25% of sentences as a likely revision target.
Group-by-1 catches single-word patterns (every sentence starting with "The"). Group-by-2 catches phrasal openings ("In the beginning"…).
Above 75% unique openings for engaging prose. Below 50% reads as monotonous.
Deliberate anaphora ("I have a dream… I have a dream…") and step-by-step lists ("First… Second… Third…") are exceptions.
入力
"The cat sat. The dog ran. The bird flew. The fish swam."
出力
"The" opens 4/4 sentences (100%) — monotonous.
Every sentence opens identically. Variety could be added: "The cat sat. A dog ran by. Above, a bird flew. Below, fish swam."