Given the task definition and input, reply with output. Given a sentence in Igbo language, translate the sentence to English language keeping the meaning of the original sentence intact

Igbo sentence: Akwukw akuk bu PS Political Science nwere nkwurita okwu banyere nnukwu data, ntinye uche, na ihe mumu, na Clark and Golder (2015) achikota onyinye bula.
The journal P.S. Political Science had a symposium on big data, causal inference, and formal theory, and Clark and Golder (2015) summarize each contribution.