PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
26689452-4	2016	To address these challenges, we have developed a new generation, Ca(II)-activated MRI contrast agent that utilizes ethyl esters to increase cell labeling and prevent extracellular divalent Ca(II) binding.	ethyl esters	115-127	carbonic anhydrase 2	Homo sapiens	65-70	
26689452-4	2016	To address these challenges, we have developed a new generation, Ca(II)-activated MRI contrast agent that utilizes ethyl esters to increase cell labeling and prevent extracellular divalent Ca(II) binding.	ethyl esters	115-127	carbonic anhydrase 2	Homo sapiens	65-71	
26689452-5	2016	Following labeling, the ethyl esters can be cleaved, thus allowing the agent to bind Ca(II), increasing relaxivity and resulting in enhanced positive MR image contrast.	ethyl esters	24-36	carbonic anhydrase 2	Homo sapiens	85-91