THE OPEN May beans:  14 higher May meal:  3.20 higher May soyoil:  46 higher May corn:  8 3/4 higher July wheat:  6 1/4 higher The markets opened higher in a buy the rumor, sell the fact trade, with profit-taking from the bull side as prices opened at new market highs on USDA business confirmations.  The weakest markets gave up their gains first, with corn turning mixed on the day shortly after the open, despite the first purchases from China via the Phase One deal.  However, prices continued to work higher as better technicals supported values.    Ags still remain highly correlated to outside markets.  Falling energies once again weighed on corn and soyoil values during the session,...