PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
22563707-4	2012	Surprisingly, the phosphodiesterase 5 (PDE5) inhibitor sildenafil was found to possess submicromolar affinity for AA2AR.	Sildenafil Citrate	55-65	adenosine A2a receptor	Homo sapiens	114-119