Task: Gauge the strength of emotion E in the tweet by assigning a score between 0 and 1, where 0 represents no intensity and 1 represents full intensity.
Tweet: Full of #optimism after the FP Summit yesterday. Thanks to @melindagates @FP2020Global @UNFPA and @DFID_UK we're thinking about #HerFuture
Emotion: joy
Intensity score: 