Assertion: virus | /r/HasProperty | hidden within innocuous program
Facets:
value: seemingly
type: DEGREE
value: usually
type: TEMPORAL
Source sentences:
text: According to Webster's Collegiate Dictionary, a computer virus is "a computer program usually hidden within another seemingly innocuous program that produces copies of itself and inserts them into other programs or files, and that usually performs a malicious action (such as destroying data)".