Assertion: viagra's sildenafil | /r/PartOf | a group of medicines
Facets:
Source sentences:
text: Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medications called phosphodiesterase type 5 inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase type 5 inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase type 5 inhibitors.
text: Sildenafil belongs to a group of medicines called phosphodiesterase type 5 inhibitors.