Complex sentence: This was less than satisfactory to the Panamanian diplomats who arrived in Washington shortly after the signing, but they did not dare renounce it, and the treaty was approved by the two nations, and work on the Panama Canal began soon after.
Split into simpler sentences: This was less than satisfactory to the Panamanian diplomats who arrived in Washington shortly after the signing, but they did not dare renounce it. The treaty was approved by the two nations, and work on the Panama Canal began soon after.