この理論は科学的な基礎の上に立っていた。

Sentence Analyzer

English Translation

This theory was founded on a scientific basis.

Furigana

この理論(りろん)は科学的(かがくてき)な基礎(きそ)の上(うえ)に立(た)っていた。

Romanji

Kono riron wa kagakuteki na kiso no ueni tatteita.

Words

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

理論 (りろん)

theory

は (は)

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

科学的 (かがくてき)

scientific

だ (だ)

be; is; indicates past or completed action; indicates light imperative

基礎 (きそ)

foundation; basis

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

立つ (たつ)

to stand; to rise; to stand up; to find oneself (e.g. in a difficult position); to depart (on a plane, train, etc.)