Possible Clues:

• Incidentally on the road there
• In passing
• On the roadside, incidentally
• Believe in the proposed route, say, in passing
• Incidentally, get Belarus to return you and me in Athy ensemble
• Incidentally, Belarus domain has article and one of the passages
• In point of fact
• State to invest in most of them on course incidentally
• "Oh, incidentally ..."
• At the side of the path?