Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Particle name | Particle symbol | Antiparticle symbol | Quark content | Rest mass ( MeV / c 2 ) | J P C | Mean lifetime ( s ) | Commonly decays to (>5% of decays) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| D meson | D + | D − | c d | 1,869.62±0.20 | 0 − | 1.040 ± 0.007 × 10 −12 | See D + decay modes |
| D meson | D 0 | D 0 | c u | 1,864.84±0.17 | 0 − | 4.101 ± 0.015 × 10 −13 | See D 0 decay modes |
| Strange D meson | D + s | D − s | c s | .47 ± .33 | 0 − | .00 ± .07 × 10− | See D + s decay modes |
| D meson | D ∗+ (2010) | D ∗− (2010) | c d | 2,010.27.62±0.17 | 1 − | 6.9 ± 1.9 × 10 −21 | D 0 + π + or D + + π 0 |
| D meson | D ∗0 (2007) | D ∗0 (2007) | c u | 2,006.97±0.19 | 1 − | >3.1 × 10 −22 | D 0 + π 0 or D 0 + γ |
Question:
What is the antiparticle symbol with a rest mess (mev/c2) of .47 ± .33?
Answer:
D − s