Take context from the input text and decide on the accurate relationship between 'Goldman Sachs' and 'Investment bank' from the options provided.
Options: distribution format, industry, product/material produced, creator

Other Articles SpiceJet Adds New Flights Starting 25th October, 2015 Paytm and InMobi Partner to Create the Largest Discovery and Mobile Shopping Platform in India Unitech Q1 sales bookings drops 47% at Rs 178 cr Investment bank Goldman Sachs will invest $150 million for a minority stake in India’s Piramal Realty, the Mumbai-based real-estate developer said on Monday.
product/material produced