____________a solution, gain, provide, carry out, ___________research, carry out, notice, face, ___________a phenomenon, make, gain, notice, _______________knowledge, gain, make, notice, ____________insight, make, notice, provide, _____________a connection, make, carry out, face, _________________a challenge, carry out, face, notice, _______________a breakthrough, make, do, gain, _______________a discovery, do, have, make.

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