紙にはインクのしみがついていた。

paper

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

ink

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

true bristletail (any insect of order Thysanura, esp. of family Lepismatidae); Oriental silverfish (Ctenolepisma villosa); someone who is unable to apply what they have read

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

to be lit (e.g. electricity comes on); to be lighted; to catch fire