それがどこから来たのか知らなかったので。
Sentence Analyzer
English Translation
He did not realize where it had come from.
Furigana
それがどこから来 たのか知 らなかったので。
Romanji
Sore ga doko kara kita no ka shiranakatta node.
Words
其れ
(それ)
that (indicating an item or person near the listener, the action of the listener, or something on their mind); it; that time; then; there (indicating a place near the listener); you
が
(が)
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
何処
(どこ、いずこ、いずく、いづこ、いどこ)
where; what place; how much (long, far); what extent
から
(から)
from (e.g. time, place, numerical quantity); since; from (originator); by; because; since; out of (constituent, part); through (e.g. window, vestibule); after; since
来る
(きたる)
next (e.g. "next April"); forthcoming; coming; to come; to arrive; to be due to
の
(の)
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
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
知る
(しる)
to be aware of; to know; to be conscious of; to cognize; to cognise; to notice; to feel; to understand; to comprehend; to grasp; to remember; to be acquainted with (a procedure); to experience; to go through; to learn; to be acquainted with (a person); to get to know; to concern
ので
(ので、んで)
that being the case; because of ...; the reason is ....; given that...