彼らはとてもよく似ているのでどっちがどっちかわからない。
Sentence Analyzer
English Translation
        They are so alike that I can't tell which is which.
    
Furigana
Romanji
        Karera wa totemo yoku niteiru node dotchi ga dotchi ka wakaranai.
    
Words
            
                彼ら
            
            
                (かれら)
            
        
        
            they (usually male); them
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                迚も
            
            
                (とても、とっても)
            
        
        
            very; awfully; exceedingly; (not) at all; by no means; simply (cannot)
        
    
            
                良く
            
            
                (よく)
            
        
        
            nicely; properly; well; skillfully; skilfully; frequently; often
        
    
            
                似る
            
            
                (にる)
            
        
        
            to resemble; to look like; to take after; to be similar (in status, condition, etc.); to be close; to be alike; to be like
        
    
            
                ので
            
            
                (ので、んで)
            
        
        
            that being the case; because of ...; the reason is ....; given that...
        
    
            
                何方
            
            
                (どちら、どっち、いずかた、いずち、どち、いずし、なにざま)
            
        
        
            which way; which direction; where; which one (esp. of two alternatives); who
        
    
            
                が
            
            
                (が)
            
        
        
            indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
        
    
            
                か
            
            
                (か)
            
        
        
            indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way
        
    
            
                分かる
            
            
                (わかる)
            
        
        
            to understand; to comprehend; to grasp; to see; to get; to follow; to become clear; to be known; to be discovered; to be realized; to be realised; to be found out