惑星の表面はほとんどが水から出来ている。

Sentence Analyzer

English Translation

The surface of a planet is composed mostly of water.

Furigana

惑星(わくせい)の表面(ひょうめん)はほとんどが水(みず)から出来(でき)ている。

Romanji

Wakusei no hyōmen wa hotondo ga mizu kara dekiteiru.

Words

惑星 (わくせい)

planet

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

表面 (ひょうめん)

surface; face; outside; exterior; appearances; superficiality

は (は)

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

殆ど (ほとんど)

mostly; nearly; practically; well-nigh; almost invariably; all but; just about; almost

が (が)

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

水 (みず、み)

water (esp. cool, fresh water, e.g. drinking water); fluid (esp. in an animal tissue); liquid; flood; floodwaters; water offered to wrestlers just prior to a bout; break granted to wrestlers engaged in a prolonged bout

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

出来る (できる)

to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at; to be permitted (to do); to become intimate; to take up (with somebody); to grow; to be raised; to become pregnant