PMC:7784787 / 8325-8549
Annnotations
LitCovid-sentences
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T71 | 0-109 | Sentence | denotes | (A) the unmasked dummy, (B) three-layer mask with middle filter layer removed, (C) single-layer textile mask. |
| T72 | 110-224 | Sentence | denotes | Bottom row: (D) CE marked FFP1 personal protective equipment mask, (E) CE marked Type 2 medical mask, (F) bandana. |